diff --git a/.circleci/config.yml b/.circleci/config.yml
index 968eaaa..e887476 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,8 +8,6 @@ jobs:
     parameters:
       ruby_version:
         type: string
-      rails_version:
-        type: string
       bundler_version:
         type: string
         default: 2.0.2
@@ -20,7 +18,6 @@ jobs:
 
     environment:
       COVERAGE: true
-      RAILS_VERSION: << parameters.rails_version >>
 
     working_directory: ~/iiif_manifest
 
@@ -38,26 +35,14 @@ workflows:
   ci:
     jobs:
       - test:
-          name: "ruby2-6_rails5-2"
-          ruby_version: "2.6.3"
-          rails_version: "5.2.3"
-      - test:
-          name: "ruby2-5_rails5-2"
-          ruby_version: "2.5.5"
-          rails_version: "5.2.3"
-      - test:
-          name: "ruby2-4_rails5-2"
-          ruby_version: "2.4.6"
-          rails_version: "5.2.3"
+          name: "ruby2-7"
+          ruby_version: "2.7.0"
       - test:
-          name: "ruby2-6_rails5-1"
-          ruby_version: "2.6.3"
-          rails_version: "5.1.7"
+          name: "ruby2-6"
+          ruby_version: "2.6.5"
       - test:
-          name: "ruby2-5_rails5-1"
-          ruby_version: "2.5.5"
-          rails_version: "5.1.7"
+          name: "ruby2-5"
+          ruby_version: "2.5.7"
       - test:
-          name: "ruby2-4_rails5-1"
-          ruby_version: "2.4.6"
-          rails_version: "5.1.7"
+          name: "ruby2-4"
+          ruby_version: "2.4.9"