diff --git a/pkgs/development/ruby-modules/gem-config/default.nix b/pkgs/development/ruby-modules/gem-config/default.nix
index 12b795238891..a0f4effd1fbf 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -312,7 +312,9 @@ in
           cp -R ext/fast_mmaped_file_rs $out
         '';
       };
-      hash = "sha256-XuQZPbFWqPHlrJvllkvLl1FjKeoAUbi8oKDrS2rY1KM=";
+      hash = if lib.versionAtLeast attrs.version "1.1.0"
+        then "sha256-tSyoCEBtMMkFfPynaMx8oc9bO7I+Pf6Y/f3Ld8uwlEE="
+        else "sha256-XuQZPbFWqPHlrJvllkvLl1FjKeoAUbi8oKDrS2rY1KM=";
     };
     nativeBuildInputs = [
       cargo