diff --git a/pkgs/nim-packages/groupchat.nix b/pkgs/nim-packages/groupchat.nix
index b8d32b7..523bb1e 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 = "8d15b0abcc8fcb8130776d8c0cf447d621b7e09a";
-    sha256 = "15acjpd35xhshv06v1prly5qr3kyapwi048h9wrzqryjsz5n6qk1";
+    rev = "4f646aab73ad5e5dea7b925cae9e0505aeaa8f72";
+    sha256 = "1yw69jyzfn0ilnlwpz5pm0z8f5z46423401c4krg66l6b1n4k0xz";
   };
 
   nimDeps = [ gnunet_nim ];