diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e333293b818..b472c6191c9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5062,7 +5062,8 @@ in
   llvm_35 = llvmPackages_35.llvm;
   llvm_34 = llvmPackages_34.llvm;
 
-  llvmPackages = recurseIntoAttrs llvmPackages_39;
+  llvmPackages = recurseIntoAttrs
+    (if stdenv.isDarwin then llvmPackages_37 else llvmPackages_39);
 
   llvmPackagesSelf = llvmPackages_34.override {
     stdenv = libcxxStdenv;