diff --git a/pkgs/servers/klipper/default.nix b/pkgs/servers/klipper/default.nix
index aa933b0fb66..f8d49770370 100644
--- a/pkgs/servers/klipper/default.nix
+++ b/pkgs/servers/klipper/default.nix
@@ -6,13 +6,13 @@
 }:
 stdenv.mkDerivation rec {
   pname = "klipper";
-  version = "unstable-2021-07-15";
+  version = "unstable-2021-09-03";
 
   src = fetchFromGitHub {
     owner = "KevinOConnor";
     repo = "klipper";
-    rev = "dafb74e3aba707db364ed773bb2135084ac0fffa";
-    sha256 = "sha256-wF5I8Mo89ohhysBRDMtkCDbCW9SKWrdYdbifmxCPJBc=";
+    rev = "c84956befe88daeeb9512acaa9fa82395665df16";
+    sha256 = "sha256-dHFIeA2RCoqC0ROYUUbSoLZ4frRWBJaNJWohpK8xN7I=";
   };
 
   # We have no LTO on i686 since commit 22284b0