diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6155a0f103470..5aa2a931c8316 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4316,10 +4316,9 @@ with pkgs;
   ghc =
     targetPackages.haskellPackages.ghc or (
       # Prefer native-bignum to avoid linking issues with gmp;
-      # TemplateHaskell doesn't work with hadrian built GHCs yet
-      # https://github.com/NixOS/nixpkgs/issues/275304
-      if stdenv.targetPlatform.isStatic then
-        haskell.compiler.native-bignum.ghc94
+      # GHC 9.10 doesn't work too well with iserv-proxy.
+      if stdenv.hostPlatform.isStatic then
+        haskell.packages.native-bignum.ghc912
       # JS backend can't use GMP
       else if stdenv.targetPlatform.isGhcjs then
         haskell.compiler.native-bignum.ghc910