2 files changed, 3 insertions, 4 deletions
diff --git a/pkgs/development/compilers/elm/default.nix b/pkgs/development/compilers/elm/default.nix
index 149d8115054..ab19ac42d24 100644
--- a/pkgs/development/compilers/elm/default.nix
+++ b/pkgs/development/compilers/elm/default.nix
@@ -7,7 +7,7 @@ let
 
   fetchElmDeps = pkgs.callPackage ./fetchElmDeps.nix { };
 
-  hsPkgs = self: pkgs.haskellPackages.override {
+  hsPkgs = self: pkgs.haskell.packages.ghc8107.override {
     overrides = self: super: with pkgs.haskell.lib.compose; with lib;
     let elmPkgs = rec {
       elm = overrideCabal (drv: {
@@ -200,4 +200,3 @@ in lib.makeScope pkgs.newScope (self: with self; {
       inherit (nodePkgs) elm-doc-preview elm-live elm-upgrade elm-xref elm-analyse elm-git-install;
     })
   )
-
diff --git a/pkgs/development/compilers/nim/default.nix b/pkgs/development/compilers/nim/default.nix
index 06b19b547b6..4f3b200477f 100644
--- a/pkgs/development/compilers/nim/default.nix
+++ b/pkgs/development/compilers/nim/default.nix
@@ -98,12 +98,12 @@ in {
 
   nim-unwrapped = stdenv.mkDerivation rec {
     pname = "nim-unwrapped";
-    version = "1.6.2";
+    version = "1.6.4";
     strictDeps = true;
 
     src = fetchurl {
       url = "https://nim-lang.org/download/nim-${version}.tar.xz";
-      hash = "sha256-msRxT6bDFdaR2n9diUHBsZDU1Dc5fZdC4yfC1RiT43M=";
+      hash = "sha256-f8MJKFW1wiAM2f7tEz0EYFgj8lDXO01KxQEwA3DgoMI=";
     };
 
     buildInputs = [ boehmgc openssl pcre readline sqlite ];