diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index c676a7b05e5..ea31f354d0d 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -268,10 +268,10 @@ in {
   };
 
   ruby_3_1 = generic {
-    version = rubyVersion "3" "1" "0" "";
+    version = rubyVersion "3" "1" "1" "";
     sha256 = {
-      src = "sha256-UKBQTG7ctNYc5rjP292qlXBxlfqw7Ne16SZUsqlBKFQ=";
-      git = "sha256-TcsoWY+zVZeue1/ypV1L0WERp1UVK35WtVtYPYiJh4c=";
+      src = "sha256-/m5Hgt6XRDl43bqLpL440iKqJNw+PwKmqOdwHA7rYZ0=";
+      git = "sha256-76t/tGyK5nz7nvcRdHJTjjckU+Kv+/kbTMiNWJ93jU8=";
     };
   };
 }
diff --git a/pkgs/development/interpreters/ruby/patchsets.nix b/pkgs/development/interpreters/ruby/patchsets.nix
index 2e51670a9f8..b76dc1a23b1 100644
--- a/pkgs/development/interpreters/ruby/patchsets.nix
+++ b/pkgs/development/interpreters/ruby/patchsets.nix
@@ -10,6 +10,6 @@
     "${patchSet}/patches/ruby/3.0/head/railsexpress/01-improve-gc-stats.patch"
     "${patchSet}/patches/ruby/3.0/head/railsexpress/02-malloc-trim.patch"
   ];
-  "3.1.0" = ops useRailsExpress [ # no patches yet (2021-12-25)
+  "3.1.1" = ops useRailsExpress [ # no patches yet (2021-12-25)
   ];
 }