diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 24c64d4e9287..82ffb67bdcac 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24947,7 +24947,9 @@ with pkgs;
 
   umockdev = callPackage ../development/libraries/umockdev { };
 
-  unconvert = callPackage ../development/tools/unconvert { };
+  unconvert = callPackage ../development/tools/unconvert {
+    buildGoModule = buildGo121Module;
+  };
 
   uncover = callPackage ../tools/security/uncover { };