diff --git a/pkgs/development/interpreters/ruby/rubygems/default.nix b/pkgs/development/interpreters/ruby/rubygems/default.nix
index dd89e0cd41d7..2c756931169a 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 = "3.5.5";
+  version = "3.5.6";
 
   src = fetchurl {
     url = "https://rubygems.org/rubygems/rubygems-${version}.tgz";
-    hash = "sha256-ErKsKMIEvs4oA8eS9v1ASfqlMOJOxeTVfCA99AIcTh0=";
+    hash = "sha256-8/zAMnzuC3677i7wFKQroFtAMtfhg0280xZd3nAMmcI=";
   };
 
   patches = [
diff --git a/pkgs/development/ruby-modules/bundler/default.nix b/pkgs/development/ruby-modules/bundler/default.nix
index 04e6a6d35a11..d0b7a1d22a45 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 = "2.5.5";
-  source.sha256 = "sha256-E8f+JpAw4qZAKmVMBt7/Aa72dM7WSds76YtVA6CApGI=";
+  version = "2.5.6";
+  source.sha256 = "sha256-Gh8h0UVuFt0v7pNGHZZANIBHqi3K9dd2h0pg3dTfXGQ=";
   dontPatchShebangs = true;
 
   postFixup = ''