diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 69b091a..9650b46 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['2.7', '3.0', '3.1', '3.2']
+        ruby: ['3.0', '3.1', '3.2']
         redmine: ['5.0-stable', '5.1-stable', 'master']
         db: ['postgres', 'mysql']
         exclude:
@@ -20,7 +20,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:14
+        image: postgres:16
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres