diff --git a/db/migrate/20090309034933_create_tweets.rb b/db/migrate/20090309034933_create_tweets.rb
index 89acd7baf..15865229c 100644
--- a/db/migrate/20090309034933_create_tweets.rb
+++ b/db/migrate/20090309034933_create_tweets.rb
@@ -1,4 +1,4 @@
-class CreateTweets < ActiveRecord::Migration
+class CreateTweets < ActiveRecord::Migration[5.2]
   def self.up
     create_table :tweets do |t|
 
diff --git a/db/migrate/20090309220337_create_messages.rb b/db/migrate/20090309220337_create_messages.rb
index 5ddc555bd..3cb3848ec 100644
--- a/db/migrate/20090309220337_create_messages.rb
+++ b/db/migrate/20090309220337_create_messages.rb
@@ -1,4 +1,4 @@
-class CreateMessages < ActiveRecord::Migration
+class CreateMessages < ActiveRecord::Migration[5.2]
   def self.up
     create_table :messages do |t|
       t.string :author
diff --git a/db/migrate/20090323162902_add_message_id.rb b/db/migrate/20090323162902_add_message_id.rb
index 8588293c4..a7fd5882f 100644
--- a/db/migrate/20090323162902_add_message_id.rb
+++ b/db/migrate/20090323162902_add_message_id.rb
@@ -1,4 +1,4 @@
-class AddMessageId < ActiveRecord::Migration
+class AddMessageId < ActiveRecord::Migration[5.2]
   def self.up
     add_column :keyvalues, :message_id, :integer, :default => 0
   end
diff --git a/db/migrate/20090605191716_create_nodes.rb b/db/migrate/20090605191716_create_nodes.rb
index ee0b41645..149b1fc18 100644
--- a/db/migrate/20090605191716_create_nodes.rb
+++ b/db/migrate/20090605191716_create_nodes.rb
@@ -1,4 +1,4 @@
-class CreateNodes < ActiveRecord::Migration
+class CreateNodes < ActiveRecord::Migration[5.2]
   def self.up
     create_table :nodes do |t|
       t.string :color, :default => 'red'
diff --git a/db/migrate/20090605201606_create_ways.rb b/db/migrate/20090605201606_create_ways.rb
index f2f97ea19..72111b1b1 100644
--- a/db/migrate/20090605201606_create_ways.rb
+++ b/db/migrate/20090605201606_create_ways.rb
@@ -1,4 +1,4 @@
-class CreateWays < ActiveRecord::Migration
+class CreateWays < ActiveRecord::Migration[5.2]
   def self.up
     create_table :ways do |t|
       t.string :color, :default => 'red'
diff --git a/db/migrate/20090611170805_create_sms.rb b/db/migrate/20090611170805_create_sms.rb
index ffc9b50d8..d653a2269 100644
--- a/db/migrate/20090611170805_create_sms.rb
+++ b/db/migrate/20090611170805_create_sms.rb
@@ -1,4 +1,4 @@
-class CreateSms < ActiveRecord::Migration
+class CreateSms < ActiveRecord::Migration[5.2]
   def self.up
     # create_table "frontline_actions_triggers", :id => false, :force => true do |t|
     #   t.integer "action_id"
diff --git a/db/migrate/20090611204112_add_name_desc_nodes_ways.rb b/db/migrate/20090611204112_add_name_desc_nodes_ways.rb
index 6b0f39950..7f09f57de 100644
--- a/db/migrate/20090611204112_add_name_desc_nodes_ways.rb
+++ b/db/migrate/20090611204112_add_name_desc_nodes_ways.rb
@@ -1,4 +1,4 @@
-class AddNameDescNodesWays < ActiveRecord::Migration
+class AddNameDescNodesWays < ActiveRecord::Migration[5.2]
   def self.up
     add_column :ways, :name, :string, :default => ""
     add_column :ways, :description, :string, :default => ""
diff --git a/db/migrate/20090611205227_change_lat_lon_types.rb b/db/migrate/20090611205227_change_lat_lon_types.rb
index f586e0b1c..952038a8e 100644
--- a/db/migrate/20090611205227_change_lat_lon_types.rb
+++ b/db/migrate/20090611205227_change_lat_lon_types.rb
@@ -1,4 +1,4 @@
-class ChangeLatLonTypes < ActiveRecord::Migration
+class ChangeLatLonTypes < ActiveRecord::Migration[5.2]
   def self.up
   	drop_table :ways
   	drop_table :nodes
diff --git a/db/migrate/20090612011846_add_way_complete.rb b/db/migrate/20090612011846_add_way_complete.rb
index 5ec563608..80f6708e3 100644
--- a/db/migrate/20090612011846_add_way_complete.rb
+++ b/db/migrate/20090612011846_add_way_complete.rb
@@ -1,4 +1,4 @@
-class AddWayComplete < ActiveRecord::Migration
+class AddWayComplete < ActiveRecord::Migration[5.2]
   def self.up
     add_column :ways, :complete, :boolean, :default => true
   end
diff --git a/db/migrate/20091016214109_create_maps.rb b/db/migrate/20091016214109_create_maps.rb
index d0dd25b39..55688a4ce 100644
--- a/db/migrate/20091016214109_create_maps.rb
+++ b/db/migrate/20091016214109_create_maps.rb
@@ -1,4 +1,4 @@
-class CreateMaps < ActiveRecord::Migration
+class CreateMaps < ActiveRecord::Migration[5.2]
   def self.up
     create_table :maps do |t|
       t.string :name, :default => ''
diff --git a/db/migrate/20100301013330_create_warpables.rb b/db/migrate/20100301013330_create_warpables.rb
index f0b157399..76d3acdde 100644
--- a/db/migrate/20100301013330_create_warpables.rb
+++ b/db/migrate/20100301013330_create_warpables.rb
@@ -1,4 +1,4 @@
-class CreateWarpables < ActiveRecord::Migration
+class CreateWarpables < ActiveRecord::Migration[5.2]
   def self.up
     create_table :warpables do |t|
       t.column :parent_id,  :integer
diff --git a/db/migrate/20100306184916_add_map_id.rb b/db/migrate/20100306184916_add_map_id.rb
index b4d92d8f8..1c585b638 100644
--- a/db/migrate/20100306184916_add_map_id.rb
+++ b/db/migrate/20100306184916_add_map_id.rb
@@ -1,4 +1,4 @@
-class AddMapId < ActiveRecord::Migration
+class AddMapId < ActiveRecord::Migration[5.2]
   def self.up
     add_column :warpables, :map_id, :integer, :default => 0
   end
diff --git a/db/migrate/20100308193343_add_map_description_author.rb b/db/migrate/20100308193343_add_map_description_author.rb
index aa963e37f..274c871dd 100644
--- a/db/migrate/20100308193343_add_map_description_author.rb
+++ b/db/migrate/20100308193343_add_map_description_author.rb
@@ -1,4 +1,4 @@
-class AddMapDescriptionAuthor < ActiveRecord::Migration
+class AddMapDescriptionAuthor < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :description, :text, :default => ''
     add_column :maps, :author, :string, :default => 'anonymous'
diff --git a/db/migrate/20100310191643_add_warper_data.rb b/db/migrate/20100310191643_add_warper_data.rb
index f19115b8c..62611f85b 100644
--- a/db/migrate/20100310191643_add_warper_data.rb
+++ b/db/migrate/20100310191643_add_warper_data.rb
@@ -1,4 +1,4 @@
-class AddWarperData < ActiveRecord::Migration
+class AddWarperData < ActiveRecord::Migration[5.2]
   def self.up
     add_column :warpables, :nodes, :string, :default => ''
   end
diff --git a/db/migrate/20100316142953_zoom_to_float.rb b/db/migrate/20100316142953_zoom_to_float.rb
index 05c9715a5..a3a0288b5 100644
--- a/db/migrate/20100316142953_zoom_to_float.rb
+++ b/db/migrate/20100316142953_zoom_to_float.rb
@@ -1,4 +1,4 @@
-class ZoomToFloat < ActiveRecord::Migration
+class ZoomToFloat < ActiveRecord::Migration[5.2]
   def self.up
     remove_column :maps, :zoom
     add_column :maps, :zoom, :decimal, :precision => 15, :scale => 10,  :default => 2
diff --git a/db/migrate/20100330233734_add_location.rb b/db/migrate/20100330233734_add_location.rb
index efd42ac0f..b9abc6996 100644
--- a/db/migrate/20100330233734_add_location.rb
+++ b/db/migrate/20100330233734_add_location.rb
@@ -1,4 +1,4 @@
-class AddLocation < ActiveRecord::Migration
+class AddLocation < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :location, :string, :default => ''
   end
diff --git a/db/migrate/20100404061203_add_warpable_lock.rb b/db/migrate/20100404061203_add_warpable_lock.rb
index 9d1dac195..434629939 100644
--- a/db/migrate/20100404061203_add_warpable_lock.rb
+++ b/db/migrate/20100404061203_add_warpable_lock.rb
@@ -1,4 +1,4 @@
-class AddWarpableLock < ActiveRecord::Migration
+class AddWarpableLock < ActiveRecord::Migration[5.2]
   def self.up 
     add_column :warpables, :locked, :boolean, :default => false, :null => false
   end
diff --git a/db/migrate/20100505153420_add_warpable_deleted.rb b/db/migrate/20100505153420_add_warpable_deleted.rb
index 47d5de9e6..e865431ba 100644
--- a/db/migrate/20100505153420_add_warpable_deleted.rb
+++ b/db/migrate/20100505153420_add_warpable_deleted.rb
@@ -1,4 +1,4 @@
-class AddWarpableDeleted < ActiveRecord::Migration
+class AddWarpableDeleted < ActiveRecord::Migration[5.2]
   def self.up
     add_column :warpables, :deleted, :boolean, :default => false, :null => false
   end
diff --git a/db/migrate/20100531175725_create_warps.rb b/db/migrate/20100531175725_create_warps.rb
index faada095d..ae8f5d1fd 100644
--- a/db/migrate/20100531175725_create_warps.rb
+++ b/db/migrate/20100531175725_create_warps.rb
@@ -1,4 +1,4 @@
-class CreateWarps < ActiveRecord::Migration
+class CreateWarps < ActiveRecord::Migration[5.2]
   def self.up
     create_table :warps do |t|
       t.integer :parent_id
diff --git a/db/migrate/20100614190507_add_warp_map_id.rb b/db/migrate/20100614190507_add_warp_map_id.rb
index 9f3a5e2f8..fd90481ae 100644
--- a/db/migrate/20100614190507_add_warp_map_id.rb
+++ b/db/migrate/20100614190507_add_warp_map_id.rb
@@ -1,4 +1,4 @@
-class AddWarpMapId < ActiveRecord::Migration
+class AddWarpMapId < ActiveRecord::Migration[5.2]
   def self.up
     add_column :warps, :map_id, :integer, :default => 0, :null => false
     add_column :warps, :warpable_id, :integer, :default => 0, :null => false
diff --git a/db/migrate/20100709061039_add_static_data_maps.rb b/db/migrate/20100709061039_add_static_data_maps.rb
index b033cda3b..162e6a7b8 100644
--- a/db/migrate/20100709061039_add_static_data_maps.rb
+++ b/db/migrate/20100709061039_add_static_data_maps.rb
@@ -1,4 +1,4 @@
-class AddStaticDataMaps < ActiveRecord::Migration
+class AddStaticDataMaps < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :static_data, :string, :default => ''
   end
diff --git a/db/migrate/20100731141421_add_warps_additional_fields.rb b/db/migrate/20100731141421_add_warps_additional_fields.rb
index b4d8cfcb0..82429d2ba 100644
--- a/db/migrate/20100731141421_add_warps_additional_fields.rb
+++ b/db/migrate/20100731141421_add_warps_additional_fields.rb
@@ -1,4 +1,4 @@
-class AddWarpsAdditionalFields < ActiveRecord::Migration
+class AddWarpsAdditionalFields < ActiveRecord::Migration[5.2]
   def self.up
     drop_table :warps
     create_table :exports do |t|
diff --git a/db/migrate/20101014151404_add_vectors_tiles.rb b/db/migrate/20101014151404_add_vectors_tiles.rb
index d29cc1d1e..c1726b58d 100644
--- a/db/migrate/20101014151404_add_vectors_tiles.rb
+++ b/db/migrate/20101014151404_add_vectors_tiles.rb
@@ -1,4 +1,4 @@
-class AddVectorsTiles < ActiveRecord::Migration
+class AddVectorsTiles < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :vectors, :boolean, :default => true, :null => false
     add_column :maps, :tiles, :string, :default => '', :null => false
diff --git a/db/migrate/20110701105813_change_map_tile_default.rb b/db/migrate/20110701105813_change_map_tile_default.rb
index c4cfb0680..c5cde0963 100644
--- a/db/migrate/20110701105813_change_map_tile_default.rb
+++ b/db/migrate/20110701105813_change_map_tile_default.rb
@@ -1,4 +1,4 @@
-class ChangeMapTileDefault < ActiveRecord::Migration
+class ChangeMapTileDefault < ActiveRecord::Migration[5.2]
   def self.up
     change_column_default(:maps, :tiles, "google")
   end
diff --git a/db/migrate/20110813004143_change_map_vector_default.rb b/db/migrate/20110813004143_change_map_vector_default.rb
index 24233c365..d9bd6cfbd 100644
--- a/db/migrate/20110813004143_change_map_vector_default.rb
+++ b/db/migrate/20110813004143_change_map_vector_default.rb
@@ -1,4 +1,4 @@
-class ChangeMapVectorDefault < ActiveRecord::Migration
+class ChangeMapVectorDefault < ActiveRecord::Migration[5.2]
   def self.up
     change_column_default(:maps, :vectors, false)
   end
diff --git a/db/migrate/20110916060555_cleanup_knitter_add_map_archive_and_user_email.rb b/db/migrate/20110916060555_cleanup_knitter_add_map_archive_and_user_email.rb
index 66929045d..6ee14a666 100644
--- a/db/migrate/20110916060555_cleanup_knitter_add_map_archive_and_user_email.rb
+++ b/db/migrate/20110916060555_cleanup_knitter_add_map_archive_and_user_email.rb
@@ -1,4 +1,4 @@
-class CleanupKnitterAddMapArchiveAndUserEmail < ActiveRecord::Migration
+class CleanupKnitterAddMapArchiveAndUserEmail < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :email, :string, :default => "", :null => false
     add_column :maps, :archived, :boolean, :default => false, :null => false
diff --git a/db/migrate/20111005211631_add_zip_warpable_res_history.rb b/db/migrate/20111005211631_add_zip_warpable_res_history.rb
index 3aa796b1e..eb2520cca 100644
--- a/db/migrate/20111005211631_add_zip_warpable_res_history.rb
+++ b/db/migrate/20111005211631_add_zip_warpable_res_history.rb
@@ -1,4 +1,4 @@
-class AddZipWarpableResHistory < ActiveRecord::Migration
+class AddZipWarpableResHistory < ActiveRecord::Migration[5.2]
   def self.up
     add_column :warpables, :history, :text, :default => "", :null => false
     add_column :warpables, :cm_per_pixel, :float, :default => 0, :null => false
diff --git a/db/migrate/20111006153011_add_map_tile_url.rb b/db/migrate/20111006153011_add_map_tile_url.rb
index b915968f0..2034f0f96 100644
--- a/db/migrate/20111006153011_add_map_tile_url.rb
+++ b/db/migrate/20111006153011_add_map_tile_url.rb
@@ -1,4 +1,4 @@
-class AddMapTileUrl < ActiveRecord::Migration
+class AddMapTileUrl < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :tile_url, :text, :default => "", :null => false
     add_column :maps, :tile_layer, :text, :default => "", :null => false
diff --git a/db/migrate/20120104164144_add_export_type_bands.rb b/db/migrate/20120104164144_add_export_type_bands.rb
index 199bd4107..572efea6c 100644
--- a/db/migrate/20120104164144_add_export_type_bands.rb
+++ b/db/migrate/20120104164144_add_export_type_bands.rb
@@ -1,4 +1,4 @@
-class AddExportTypeBands < ActiveRecord::Migration
+class AddExportTypeBands < ActiveRecord::Migration[5.2]
   def self.up
     add_column :exports, :bands_string, :text, :default => "", :null => false
     add_column :exports, :export_type, :string, :default => "normal", :null => false
diff --git a/db/migrate/20120229164021_add_license.rb b/db/migrate/20120229164021_add_license.rb
index 878d4e257..264ee34dc 100644
--- a/db/migrate/20120229164021_add_license.rb
+++ b/db/migrate/20120229164021_add_license.rb
@@ -1,4 +1,4 @@
-class AddLicense < ActiveRecord::Migration
+class AddLicense < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :license, :string, :default => 'copyright'
   end
diff --git a/db/migrate/20120525201148_create_users.rb b/db/migrate/20120525201148_create_users.rb
index e4f11da29..5ff54a0b0 100644
--- a/db/migrate/20120525201148_create_users.rb
+++ b/db/migrate/20120525201148_create_users.rb
@@ -1,4 +1,4 @@
-class CreateUsers < ActiveRecord::Migration
+class CreateUsers < ActiveRecord::Migration[5.2]
   def self.up
     create_table "users", :force => true do |t|
       t.string   :login,                     :limit => 40
diff --git a/db/migrate/20120525215158_add_user_role_default.rb b/db/migrate/20120525215158_add_user_role_default.rb
index 637b26eb7..cf41cb86a 100644
--- a/db/migrate/20120525215158_add_user_role_default.rb
+++ b/db/migrate/20120525215158_add_user_role_default.rb
@@ -1,4 +1,4 @@
-class AddUserRoleDefault < ActiveRecord::Migration
+class AddUserRoleDefault < ActiveRecord::Migration[5.2]
   def self.up
     change_column_default(:users, :role, "basic")
   end
diff --git a/db/migrate/20120601185008_remove_identity_url_limit.rb b/db/migrate/20120601185008_remove_identity_url_limit.rb
index 9d558b49b..822e21f2c 100644
--- a/db/migrate/20120601185008_remove_identity_url_limit.rb
+++ b/db/migrate/20120601185008_remove_identity_url_limit.rb
@@ -1,4 +1,4 @@
-class RemoveIdentityUrlLimit < ActiveRecord::Migration
+class RemoveIdentityUrlLimit < ActiveRecord::Migration[5.2]
   def self.up
     change_column :users, :identity_url, :string, :limit => 255
   end
diff --git a/db/migrate/20120701165519_create_tags.rb b/db/migrate/20120701165519_create_tags.rb
index c2938bba2..37c7467ec 100644
--- a/db/migrate/20120701165519_create_tags.rb
+++ b/db/migrate/20120701165519_create_tags.rb
@@ -1,4 +1,4 @@
-class CreateTags < ActiveRecord::Migration
+class CreateTags < ActiveRecord::Migration[5.2]
   def self.up
     create_table :tags do |t|
       t.string :user_id
diff --git a/db/migrate/20130113164917_add_node_map_id.rb b/db/migrate/20130113164917_add_node_map_id.rb
index 63eb584d6..6058876f8 100644
--- a/db/migrate/20130113164917_add_node_map_id.rb
+++ b/db/migrate/20130113164917_add_node_map_id.rb
@@ -1,4 +1,4 @@
-class AddNodeMapId < ActiveRecord::Migration
+class AddNodeMapId < ActiveRecord::Migration[5.2]
   def self.up
     add_column :nodes, :map_id, :integer, :default => 0
     add_column :ways, :map_id, :integer, :default => 0
diff --git a/db/migrate/20130124160539_add_way_order.rb b/db/migrate/20130124160539_add_way_order.rb
index 8d084d6a8..afd989761 100644
--- a/db/migrate/20130124160539_add_way_order.rb
+++ b/db/migrate/20130124160539_add_way_order.rb
@@ -1,4 +1,4 @@
-class AddWayOrder < ActiveRecord::Migration
+class AddWayOrder < ActiveRecord::Migration[5.2]
   def self.up
     add_column :nodes, :way_order, :integer, :default => 0
   end
diff --git a/db/migrate/20130128184718_add_node_and_way_body.rb b/db/migrate/20130128184718_add_node_and_way_body.rb
index 7a0d13070..dd91eb697 100644
--- a/db/migrate/20130128184718_add_node_and_way_body.rb
+++ b/db/migrate/20130128184718_add_node_and_way_body.rb
@@ -1,4 +1,4 @@
-class AddNodeAndWayBody < ActiveRecord::Migration
+class AddNodeAndWayBody < ActiveRecord::Migration[5.2]
   def self.up
     add_column :nodes, :body, :text
     add_column :ways, :body, :text
diff --git a/db/migrate/20130605202555_add_map_anonymously_annotatable.rb b/db/migrate/20130605202555_add_map_anonymously_annotatable.rb
index ef5f01f23..37a2906bb 100644
--- a/db/migrate/20130605202555_add_map_anonymously_annotatable.rb
+++ b/db/migrate/20130605202555_add_map_anonymously_annotatable.rb
@@ -1,4 +1,4 @@
-class AddMapAnonymouslyAnnotatable < ActiveRecord::Migration
+class AddMapAnonymouslyAnnotatable < ActiveRecord::Migration[5.2]
   def self.up
     add_column :maps, :anon_annotatable, :boolean, :default => false
   end
diff --git a/db/migrate/20140811184901_add_tag_index.rb b/db/migrate/20140811184901_add_tag_index.rb
index fbc6cff1e..28c273e09 100644
--- a/db/migrate/20140811184901_add_tag_index.rb
+++ b/db/migrate/20140811184901_add_tag_index.rb
@@ -1,4 +1,4 @@
-class AddTagIndex < ActiveRecord::Migration
+class AddTagIndex < ActiveRecord::Migration[5.2]
   def self.up
   	add_index :tags, :map_id
   	add_index :tags, :warpable_id
diff --git a/db/migrate/20140811185342_create_comments.rb b/db/migrate/20140811185342_create_comments.rb
index aea70043b..36a5b1fb9 100644
--- a/db/migrate/20140811185342_create_comments.rb
+++ b/db/migrate/20140811185342_create_comments.rb
@@ -1,4 +1,4 @@
-class CreateComments < ActiveRecord::Migration
+class CreateComments < ActiveRecord::Migration[5.2]
   def self.up
     create_table :comments do |t|
       t.string :user_id
diff --git a/db/migrate/20140902182631_create_annotations.rb b/db/migrate/20140902182631_create_annotations.rb
index 0dbe8471e..9be8d2ea8 100644
--- a/db/migrate/20140902182631_create_annotations.rb
+++ b/db/migrate/20140902182631_create_annotations.rb
@@ -1,4 +1,4 @@
-class CreateAnnotations < ActiveRecord::Migration
+class CreateAnnotations < ActiveRecord::Migration[5.2]
   def self.up
     create_table :annotations do |t|
       t.integer :map_id
diff --git a/db/migrate/20140902201706_rename_annotation_type.rb b/db/migrate/20140902201706_rename_annotation_type.rb
index 26bd9bd3d..b657ff5eb 100644
--- a/db/migrate/20140902201706_rename_annotation_type.rb
+++ b/db/migrate/20140902201706_rename_annotation_type.rb
@@ -1,4 +1,4 @@
-class RenameAnnotationType < ActiveRecord::Migration
+class RenameAnnotationType < ActiveRecord::Migration[5.2]
   def self.up
     rename_column :annotations, :type, :annotation_type
   end
diff --git a/db/migrate/20141103164503_change_warpable_columns.rb b/db/migrate/20141103164503_change_warpable_columns.rb
index aa22ccff0..dd9d97d0c 100644
--- a/db/migrate/20141103164503_change_warpable_columns.rb
+++ b/db/migrate/20141103164503_change_warpable_columns.rb
@@ -1,4 +1,4 @@
-class ChangeWarpableColumns < ActiveRecord::Migration
+class ChangeWarpableColumns < ActiveRecord::Migration[5.2]
   def up
     rename_column(:warpables, :filename, :image_file_name)
     rename_column(:warpables, :content_type, :image_content_type)
diff --git a/db/migrate/20141104184417_change_openid_identity_urls.rb b/db/migrate/20141104184417_change_openid_identity_urls.rb
index 941426cc9..b079ffce8 100644
--- a/db/migrate/20141104184417_change_openid_identity_urls.rb
+++ b/db/migrate/20141104184417_change_openid_identity_urls.rb
@@ -1,4 +1,4 @@
-class ChangeOpenidIdentityUrls < ActiveRecord::Migration
+class ChangeOpenidIdentityUrls < ActiveRecord::Migration[5.2]
   def up
 
     users = User.find :all
diff --git a/db/migrate/20150117041411_add_slug_field_to_maps.rb b/db/migrate/20150117041411_add_slug_field_to_maps.rb
index 023037296..4cd5072a8 100644
--- a/db/migrate/20150117041411_add_slug_field_to_maps.rb
+++ b/db/migrate/20150117041411_add_slug_field_to_maps.rb
@@ -1,4 +1,4 @@
-class AddSlugFieldToMaps < ActiveRecord::Migration
+class AddSlugFieldToMaps < ActiveRecord::Migration[5.2]
   def change
     # There are some duplicate maps, but none have images, so we can delete dupes that don't have images. 
     dupes = []
diff --git a/db/migrate/20150117041704_move_current_values_in_map_name_to_slug_field.rb b/db/migrate/20150117041704_move_current_values_in_map_name_to_slug_field.rb
index 5b3ad170a..6bb1a01a2 100644
--- a/db/migrate/20150117041704_move_current_values_in_map_name_to_slug_field.rb
+++ b/db/migrate/20150117041704_move_current_values_in_map_name_to_slug_field.rb
@@ -1,4 +1,4 @@
-class MoveCurrentValuesInMapNameToSlugField < ActiveRecord::Migration
+class MoveCurrentValuesInMapNameToSlugField < ActiveRecord::Migration[5.2]
   def up
   	execute "UPDATE maps m SET m.slug = m.name"
   end
diff --git a/db/migrate/20150715162314_change_map_null.rb b/db/migrate/20150715162314_change_map_null.rb
index 1ddd7e990..c4d25fec9 100644
--- a/db/migrate/20150715162314_change_map_null.rb
+++ b/db/migrate/20150715162314_change_map_null.rb
@@ -1,4 +1,4 @@
-class ChangeMapNull < ActiveRecord::Migration
+class ChangeMapNull < ActiveRecord::Migration[5.2]
   def up
     change_column_null :maps, :tile_url,   true
     change_column_null :maps, :tile_layer, true
diff --git a/db/migrate/20190420025012_add_remote_url_to_exports.rb b/db/migrate/20190420025012_add_remote_url_to_exports.rb
index ac9a0bc68..53a1859a0 100644
--- a/db/migrate/20190420025012_add_remote_url_to_exports.rb
+++ b/db/migrate/20190420025012_add_remote_url_to_exports.rb
@@ -1,4 +1,4 @@
-class AddRemoteUrlToExports < ActiveRecord::Migration
+class AddRemoteUrlToExports < ActiveRecord::Migration[5.2]
   def change
     add_column :exports, :export_url, :string
   end