diff --git a/.github/workflows/5_1_11.yml b/.github/workflows/5_1_1.yml
similarity index 99%
rename from .github/workflows/5_1_11.yml
rename to .github/workflows/5_1_1.yml
index fb2a169..dfb361f 100644
--- a/.github/workflows/5_1_11.yml
+++ b/.github/workflows/5_1_1.yml
@@ -1,8 +1,8 @@
-name: Tests 5.1.11
+name: Tests 5.1.1
 
 env:
   PLUGIN_NAME: redmine_customize_core_fields
-  REDMINE_VERSION: 5.1.11
+  REDMINE_VERSION: 5.1.1
   RAILS_ENV: test
 
 on: