2 files changed, 4 insertions, 12 deletions
diff --git a/third_party/overlays/haskell/default.nix b/third_party/overlays/haskell/default.nix
index 16c250f82004..45681194acc6 100644
--- a/third_party/overlays/haskell/default.nix
+++ b/third_party/overlays/haskell/default.nix
@@ -20,18 +20,6 @@ let
     hashable = doJailbreak hsSuper.hashable;
     test-framework-quickcheck2 = doJailbreak hsSuper.test-framework-quickcheck2;
     pandoc = doJailbreak hsSuper.pandoc;
-
-    # can be removed if we have the following PR or equivalent
-    # https://github.com/NixOS/nixpkgs/pull/116931
-    hedgehog-classes = overrideCabal hsSuper.hedgehog-classes (attrs: {
-      # remove version bound on semirings which is inside a
-      # conditional, so doJailbreak doesn't work
-      prePatch = ''
-        sed -i 's|semirings.*0.6|semirings|g' hedgehog-classes.cabal
-      '';
-    });
-
-    hgeometry-combinatorial = dontCheck hsSuper.hgeometry-combinatorial;
   };
 in {
   haskellPackages = super.haskellPackages.override {
diff --git a/third_party/overlays/tvl.nix b/third_party/overlays/tvl.nix
index 01f7156ff19b..6c182df7d481 100644
--- a/third_party/overlays/tvl.nix
+++ b/third_party/overlays/tvl.nix
@@ -24,4 +24,8 @@ self: super: {
   clang-tools = (super.clang-tools.override {
     llvmPackages = self.llvmPackages_11;
   });
+
+  # Pick an older version of SBCL as the default, to avoid issues with
+  # warnings in newer SBCL.
+  sbcl = super.sbcl_2_0_8;
 }