diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index 73debef7914c..76def5f85a10 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -218,10 +218,10 @@ in {
   };
 
   ruby_2_5 = generic {
-    version = rubyVersion "2" "5" "7" "";
+    version = rubyVersion "2" "5" "8" "";
     sha256 = {
-      src = "1m6nmnj9shifp8g3yh7aimac01vl035bzcc19x2spdji6ig0sb8b";
-      git = "0wppf82c9ccdbnvj30mppr5a3mc7sxm05diahjdw7hhk29n43knp";
+      src = "16md4jspjwixjlbhx3pnd5iwpca07p23ghkxkqd82sbchw3xy2vc";
+      git = "19gkk3q9l33cwkfsp5k8f8fipq7gkyqkqirm9farbvy425519rv2";
     };
   };
 }
diff --git a/pkgs/development/interpreters/ruby/patchsets.nix b/pkgs/development/interpreters/ruby/patchsets.nix
index ea33493bf0be..66f979042c2f 100644
--- a/pkgs/development/interpreters/ruby/patchsets.nix
+++ b/pkgs/development/interpreters/ruby/patchsets.nix
@@ -11,7 +11,7 @@ rec {
     "${patchSet}/patches/ruby/2.4/head/railsexpress/02-improve-gc-stats.patch"
     "${patchSet}/patches/ruby/2.4/head/railsexpress/03-display-more-detailed-stack-trace.patch"
   ];
-  "2.5.7" = ops useRailsExpress [
+  "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"