diff --git a/cabal.project b/cabal.project
index 340510f7..7b088aa6 100644
--- a/cabal.project
+++ b/cabal.project
@@ -14,7 +14,7 @@ repository cardano-haskell-packages
 -- you need to run if you change them
 
 repository ghcjs-overlay
-  url: https://input-output-hk.github.io/hackage-overlay-ghcjs/
+  url: https://raw.githubusercontent.com/input-output-hk/hackage-overlay-ghcjs/repo
   secure: True
   root-keys:
     3838d0dfa046bb3d16de9ae0823dab1dd937ee336f9bcaa87c85b36443aee7f6
diff --git a/nix/haskell.nix b/nix/haskell.nix
index 8e5adbc8..ce4b28b8 100644
--- a/nix/haskell.nix
+++ b/nix/haskell.nix
@@ -28,7 +28,7 @@ haskell-nix.cabalProject' (
 
     inputMap = {
       "https://chap.intersectmbo.org/" = CHaP;
-      "https://input-output-hk.github.io/hackage-overlay-ghcjs/" = hackageGHCJS;
+      "https://raw.githubusercontent.com/input-output-hk/hackage-overlay-ghcjs/repo" = hackageGHCJS;
     };
 
     # Setting this to builtins.currentSystem allows --impure to be used