diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df5e40734b62..6d88ff07330c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8103,7 +8103,7 @@ in
   }));
   spidermonkey_52 = callPackage ../development/interpreters/spidermonkey/52.nix { };
   spidermonkey_60 = callPackage ../development/interpreters/spidermonkey/60.nix { };
-  spidermonkey = spidermonkey_31;
+  spidermonkey = spidermonkey_38;
 
   ssm-agent = callPackage ../applications/networking/cluster/ssm-agent { };