1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index ae985f8b75d9..13c5b7213013 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -77,8 +77,8 @@ in {
     ghcHEAD = callPackage ../development/compilers/ghc/head.nix {
       bootPkgs = packages.ghc883; # no binary yet
       inherit (buildPackages.python3Packages) sphinx;
-      buildLlvmPackages = buildPackages.llvmPackages_9;
-      llvmPackages = pkgs.llvmPackages_9;
+      buildLlvmPackages = buildPackages.llvmPackages_10;
+      llvmPackages = pkgs.llvmPackages_10;
       libffi = pkgs.libffi;
     };
     ghcjs = compiler.ghcjs86;