diff --git a/pkgs/development/tools/analysis/checkstyle/default.nix b/pkgs/development/tools/analysis/checkstyle/default.nix
index c17c453bf55..a9cf08c4c3e 100644
--- a/pkgs/development/tools/analysis/checkstyle/default.nix
+++ b/pkgs/development/tools/analysis/checkstyle/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  version = "6.12.1";
+  version = "6.13";
   name = "checkstyle-${version}";
 
   src = fetchurl {
     url = "mirror://sourceforge/checkstyle/${name}-bin.tar.gz";
-    sha256 = "1s2qj2kz5q2wrfxk9mnw23ly3abplnly73apy37583d2nvs2hjyq";
+    sha256 = "0k53kj0mx0shypagny134yrhkjgawzs5yixaxv87br52ablcqdvx";
   };
 
   installPhase = ''