diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
index 7d7abbd1eed..5b3a1564aeb 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/purple-slack/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation {
   pname = "purple-slack-unstable";
-  version = "2019-08-18";
+  version = "2020-09-22";
 
   src = fetchFromGitHub {
     owner = "dylex";
     repo = "slack-libpurple";
-    rev = "be97802c7fd0b611722d2f551756e2a2672f6084";
-    sha256 = "0l6hwnnv6zzszxkk0a3nli88w5gijvlc9qgkkai0sb4v4c504y5v";
+    rev = "2e9fa028224b02e29473b1b998fc1e5f487e79ec";
+    sha256 = "1sksqshiwldd32k8jmiflp2pcax31ym6rypr4qa4v5vdn907g80m";
   };
 
   nativeBuildInputs = [ pkgconfig ];