diff --git a/pkgs/development/compilers/ghc/9.0.1.nix b/pkgs/development/compilers/ghc/9.0.1.nix
index 39abe9c760e..83f3534d3e4 100644
--- a/pkgs/development/compilers/ghc/9.0.1.nix
+++ b/pkgs/development/compilers/ghc/9.0.1.nix
@@ -96,12 +96,12 @@ let
 
 in
 stdenv.mkDerivation (rec {
-  version = "9.0.0.20201227";
+  version = "9.0.1";
   name = "${targetPrefix}ghc-${version}";
 
   src = fetchurl {
-    url = "https://downloads.haskell.org/ghc/9.0.1-rc1/ghc-${version}-src.tar.xz";
-    sha256 = "1kg227fzg9qq2p7r8xqr99vvnx7ind4clxkydikyzf3vqvaacjfy";
+    url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
+    sha256 = "1y9mi9bq76z04hmggavrn8jwi1gx92bm3zhx6z69ypq6wha068x5";
   };
 
   enableParallelBuilding = true;