diff --git a/pkgs/applications/science/logic/kissat/default.nix b/pkgs/applications/science/logic/kissat/default.nix
index 5f982508c8c6..2941952287be 100644
--- a/pkgs/applications/science/logic/kissat/default.nix
+++ b/pkgs/applications/science/logic/kissat/default.nix
@@ -4,13 +4,13 @@
 
 stdenv.mkDerivation rec {
   pname = "kissat";
-  version = "3.1.0";
+  version = "3.1.1";
 
   src = fetchFromGitHub {
     owner = "arminbiere";
     repo = "kissat";
     rev = "rel-${version}";
-    sha256 = "sha256-AFUVkkD+toOfVEvIKfz3ncEdABLRxs9yQ8aJx6Q0ETM=";
+    sha256 = "sha256-zK20/vhbVihrxmd52DjByDUO99pBAr8SlJtQpX5fmwY=";
   };
 
   outputs = [ "out" "dev" "lib" ];