diff --git a/config/install/block.block.seven_breadcrumbs.yml b/config/install/block.block.seven_breadcrumbs.yml
index edbdfbd..5a3d848 100644
--- a/config/install/block.block.seven_breadcrumbs.yml
+++ b/config/install/block.block.seven_breadcrumbs.yml
@@ -4,9 +4,9 @@ dependencies:
   module:
     - system
   theme:
-    - seven
+    - claro
 id: seven_breadcrumbs
-theme: seven
+theme: claro
 region: breadcrumb
 weight: 0
 provider: null
diff --git a/config/install/block.block.seven_content.yml b/config/install/block.block.seven_content.yml
index d92214c..7a4567e 100644
--- a/config/install/block.block.seven_content.yml
+++ b/config/install/block.block.seven_content.yml
@@ -4,9 +4,9 @@ dependencies:
   module:
     - system
   theme:
-    - seven
+    - claro
 id: seven_content
-theme: seven
+theme: claro
 region: content
 weight: 0
 provider: null
diff --git a/config/install/block.block.seven_local_actions.yml b/config/install/block.block.seven_local_actions.yml
index 61cdb17..b130479 100644
--- a/config/install/block.block.seven_local_actions.yml
+++ b/config/install/block.block.seven_local_actions.yml
@@ -2,9 +2,9 @@ langcode: en
 status: true
 dependencies:
   theme:
-    - seven
+    - claro
 id: seven_local_actions
-theme: seven
+theme: claro
 region: content
 weight: -10
 provider: null
diff --git a/config/install/block.block.seven_login.yml b/config/install/block.block.seven_login.yml
index 110e8fd..b65c6f0 100644
--- a/config/install/block.block.seven_login.yml
+++ b/config/install/block.block.seven_login.yml
@@ -4,9 +4,9 @@ dependencies:
   module:
     - user
   theme:
-    - seven
+    - claro
 id: seven_login
-theme: seven
+theme: claro
 region: content
 weight: 10
 provider: null
diff --git a/config/install/block.block.seven_messages.yml b/config/install/block.block.seven_messages.yml
index f7b6038..0c9be95 100644
--- a/config/install/block.block.seven_messages.yml
+++ b/config/install/block.block.seven_messages.yml
@@ -4,9 +4,9 @@ dependencies:
   module:
     - system
   theme:
-    - seven
+    - claro
 id: seven_messages
-theme: seven
+theme: claro
 region: highlighted
 weight: 0
 provider: null
diff --git a/config/install/block.block.seven_page_title.yml b/config/install/block.block.seven_page_title.yml
index 56df293..07cb0f1 100644
--- a/config/install/block.block.seven_page_title.yml
+++ b/config/install/block.block.seven_page_title.yml
@@ -2,9 +2,9 @@ langcode: en
 status: true
 dependencies:
   theme:
-    - seven
+    - claro
 id: seven_page_title
-theme: seven
+theme: claro
 region: header
 weight: -30
 provider: null
diff --git a/config/install/block.block.seven_primary_local_tasks.yml b/config/install/block.block.seven_primary_local_tasks.yml
index d0017c2..d0dd191 100644
--- a/config/install/block.block.seven_primary_local_tasks.yml
+++ b/config/install/block.block.seven_primary_local_tasks.yml
@@ -2,9 +2,9 @@ langcode: en
 status: true
 dependencies:
   theme:
-    - seven
+    - claro
 id: seven_primary_local_tasks
-theme: seven
+theme: claro
 region: header
 weight: 0
 provider: null
diff --git a/config/install/block.block.seven_secondary_local_tasks.yml b/config/install/block.block.seven_secondary_local_tasks.yml
index 3339199..7266bec 100644
--- a/config/install/block.block.seven_secondary_local_tasks.yml
+++ b/config/install/block.block.seven_secondary_local_tasks.yml
@@ -2,9 +2,9 @@ langcode: en
 status: true
 dependencies:
   theme:
-    - seven
+    - claro
 id: seven_secondary_local_tasks
-theme: seven
+theme: claro
 region: pre_content
 weight: 0
 provider: null
diff --git a/config/install/block.block.seven_tide_cms_help.yml b/config/install/block.block.seven_tide_cms_help.yml
index 8555bf3..bb505eb 100644
--- a/config/install/block.block.seven_tide_cms_help.yml
+++ b/config/install/block.block.seven_tide_cms_help.yml
@@ -4,9 +4,9 @@ dependencies:
   module:
     - tide_cms_support
   theme:
-    - seven
+    - claro
 id: seven_tide_cms_help
-theme: seven
+theme: claro
 region: help
 weight: -100
 provider: null
diff --git a/tide.info.yml b/tide.info.yml
index 28b0e7f..7fc5693 100644
--- a/tide.info.yml
+++ b/tide.info.yml
@@ -16,4 +16,4 @@ dependencies:
   - dpc-sdp:tide_search
   - dpc-sdp:tide_site
 themes:
-  - seven
+  - claro
diff --git a/tide.install b/tide.install
index 387e3b1..5b79aae 100644
--- a/tide.install
+++ b/tide.install
@@ -18,12 +18,12 @@ function tide_install() {
     return;
   }
 
-  // Set the default and admin theme to Seven. It is important to set themes
-  // only to enabled ones (and we are enabling Seven in profile dependencies).
+  // Set the default and admin theme to Claro. It is important to set themes
+  // only to enabled ones (and we are enabling Claro in profile dependencies).
   \Drupal::configFactory()
     ->getEditable('system.theme')
-    ->set('default', 'seven')
-    ->set('admin', 'seven')
+    ->set('default', 'claro')
+    ->set('admin', 'claro')
     ->save(TRUE);
 
   // Set the path to the logo and favicon files based on install directory.