diff --git a/pkgs/development/tools/analysis/checkstyle/default.nix b/pkgs/development/tools/analysis/checkstyle/default.nix
index f0698de5c7e..5817edbf2e3 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 = "6.8.2";
+  version = "6.9";
   name = "checkstyle-${version}";
 
   src = fetchurl {
     url = "mirror://sourceforge/checkstyle/${name}-bin.tar.gz";
-    sha256 = "1r0wb8iqvmhvgxk1ya39x8b4ayd549bfxmnw26i84870hnqr179c";
+    sha256 = "122lzqai6nb1wx9z9hc92sld9ghrynywf4f4lz6wk50kywcp0p70";
   };
 
   installPhase = ''