diff --git a/pkgs/nim-packages/groupchat.nix b/pkgs/nim-packages/groupchat.nix
index 36ebd5d..b3c76f0 100644
--- a/pkgs/nim-packages/groupchat.nix
+++ b/pkgs/nim-packages/groupchat.nix
@@ -19,8 +19,8 @@ buildNimblePackage rec {
 
   src = fetchgit {
     url =  https://git.gnunet.org/groupchat.git;
-    rev = "e8e27aa89bb6794be5260c86bd5c79588ca131af";
-    sha256 = "05jg8gavwzkwbas0j444q9lbxyglrylfd50gam2mzdixdgb1hwfb";
+    rev = "66481b77acfa990f53fe94f6268e69c8db9fff6c";
+    sha256 = "0lqicnwhv6bccjf4y4sh57hd83kvgb9r44z9pya76vc4kdx5nipb";
   };
 
   nimDeps = [ gnunet_nim ];