diff --git a/overlay.nix b/overlay.nix
index a8017876a1209d27132e3022957200625747bbb3..3c6ad2979516c4b1eb568c8a10f9c2002c4110b3 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -183,6 +183,8 @@ final: prev: with pkgs.haskell.lib; {
 
   parallel = doJailbreak (final.callHackage "parallel" "3.2.2.0" { });
 
+  pcg-random = dontCheck (prev.callHackage "pcg-random" "0.1.3.7" { });
+
   polysemy = dontCheck (prev.callHackage "polysemy" "1.7.1.0" { });
 
   polysemy-extra = prev.callHackage "polysemy-extra" "0.2.1.0" { };