diff --git a/flake.nix b/flake.nix
index ecb1be4..d096fbd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,8 +14,8 @@
       	let
           nimhafas = final.fetchgit {
             url    = "https://cgit.ctu.cx/nimhafas";
-            rev    = "1909376e6c33d9b5c1f56139fe53e6866692dde0";
-            sha256 = "1xaj3dd8i2izja3zzvy4db7hz3q1qdsp6csf3ww24f523dyxl8rn";
+            rev    = "4a4a0d3d4ae86aa9245a9c79bba1f80811407ba5";
+            sha256 = "sha256-q1nKDavzUghsL2Amyg/fJYYmg9zPrWH3b8R+D0YK+FA";
           };
 
       	in final.nimPackages.buildNimPackage {