diff --git a/pkgs/development/interpreters/ruby/rubygems/default.nix b/pkgs/development/interpreters/ruby/rubygems/default.nix
index 71f3f8be9b0130f..e40ccb5908db6ea 100644
--- a/pkgs/development/interpreters/ruby/rubygems/default.nix
+++ b/pkgs/development/interpreters/ruby/rubygems/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "rubygems";
-  version = "3.4.19";
+  version = "3.4.20";
 
   src = fetchurl {
     url = "https://rubygems.org/rubygems/rubygems-${version}.tgz";
-    hash = "sha256-+ZYpS9UOB16qCjhrKwFGBn43t3KNOv/QIrLKIPAywWs=";
+    hash = "sha256-9jKKef7KPnSYgKb3zf1LaulFBJuDpY6pWOJHSpG6Hzs=";
   };
 
   patches = [
diff --git a/pkgs/development/ruby-modules/bundler/default.nix b/pkgs/development/ruby-modules/bundler/default.nix
index 54842ff64135067..cb9075567274c28 100644
--- a/pkgs/development/ruby-modules/bundler/default.nix
+++ b/pkgs/development/ruby-modules/bundler/default.nix
@@ -4,8 +4,8 @@ buildRubyGem rec {
   inherit ruby;
   name = "${gemName}-${version}";
   gemName = "bundler";
-  version = "2.4.19";
-  source.sha256 = "sha256-M03HlkODhHMv3xm/ovYjdTt+2FFg0Izh8gAJmEzvs2I=";
+  version = "2.4.20";
+  source.sha256 = "sha256-dEsrGVHaYTryr2hU98H54W3ZC0tmzZrxonqfRIx2G+4=";
   dontPatchShebangs = true;
 
   postFixup = ''