diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index a5bb24c9e09d..31ddb49e5ee1 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -223,10 +223,10 @@ in {
   };
 
   ruby_2_6 = generic {
-    version = rubyVersion "2" "6" "2" "";
+    version = rubyVersion "2" "6" "5" "";
     sha256 = {
-      src = "1as97d2j0d21g8mldp8fmdjah96jakrxyw1v0crg7ln2y8mmsh50";
-      git = "0f4mnrd7733353kx1jjha770kvm0wlc59z7id9h23kmjdg6k76nl";
+      src = "0zgdrgylq6avbblf78kpaf0k2xnkpc3jng3wkd7x67ycdrqnp5v6";
+      git = "0pay6ic22ag3bnvxffhgwp7z6clkd0p93944a1l4lvc5hxc8v77j";
     };
   };
 }
diff --git a/pkgs/development/interpreters/ruby/patchsets.nix b/pkgs/development/interpreters/ruby/patchsets.nix
index 93beda90b8c5..c38ec7e077af 100644
--- a/pkgs/development/interpreters/ruby/patchsets.nix
+++ b/pkgs/development/interpreters/ruby/patchsets.nix
@@ -16,7 +16,7 @@ rec {
     "${patchSet}/patches/ruby/2.5/head/railsexpress/02-improve-gc-stats.patch"
     "${patchSet}/patches/ruby/2.5/head/railsexpress/03-more-detailed-stacktrace.patch"
   ];
-  "2.6.2" = ops useRailsExpress [
+  "2.6.5" = 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"
     "${patchSet}/patches/ruby/2.6/head/railsexpress/03-more-detailed-stacktrace.patch"