diff --git a/pkgs/os-specific/linux/jool/source.nix b/pkgs/os-specific/linux/jool/source.nix
index b0849becd75c..35ae6875aa57 100644
--- a/pkgs/os-specific/linux/jool/source.nix
+++ b/pkgs/os-specific/linux/jool/source.nix
@@ -1,11 +1,11 @@
 { fetchFromGitHub }:
 
 rec {
-  version = "4.1.12";
+  version = "4.1.13";
   src = fetchFromGitHub {
     owner = "NICMx";
     repo = "Jool";
     rev = "refs/tags/v${version}";
-    hash = "sha256-NJitXmWWEEglg4jag0mRZlmbf5+0sT08/pCssry5zD0=";
+    hash = "sha256-Uls3S53jdoGyJ5xUEipQ0Ev5LAp5wzF2DsaLZCy+6Gc=";
   };
 }