diff --git a/pkgs/development/interpreters/ruby/patchsets.nix b/pkgs/development/interpreters/ruby/patchsets.nix
index 246d44e20d1..3abba61bc24 100644
--- a/pkgs/development/interpreters/ruby/patchsets.nix
+++ b/pkgs/development/interpreters/ruby/patchsets.nix
@@ -1,11 +1,6 @@
 { patchSet, useRailsExpress, ops, patchLevel, fetchpatch }:
 
 {
-  "2.5.8" = ops useRailsExpress [
-    "${patchSet}/patches/ruby/2.5/head/railsexpress/01-fix-broken-tests-caused-by-ad.patch"
-    "${patchSet}/patches/ruby/2.5/head/railsexpress/02-improve-gc-stats.patch"
-    "${patchSet}/patches/ruby/2.5/head/railsexpress/03-more-detailed-stacktrace.patch"
-  ];
   "2.6.6" = ops useRailsExpress [
     "${patchSet}/patches/ruby/2.6/head/railsexpress/01-fix-broken-tests-caused-by-ad.patch"
     "${patchSet}/patches/ruby/2.6/head/railsexpress/02-improve-gc-stats.patch"