diff --git a/pkgs/applications/science/biology/picard-tools/default.nix b/pkgs/applications/science/biology/picard-tools/default.nix
index 99bac0c4b7a5..d496e78748d9 100644
--- a/pkgs/applications/science/biology/picard-tools/default.nix
+++ b/pkgs/applications/science/biology/picard-tools/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "picard-tools";
-  version = "2.23.3";
+  version = "2.23.4";
 
   src = fetchurl {
     url = "https://github.com/broadinstitute/picard/releases/download/${version}/picard.jar";
-    sha256 = "08wgi0hijfbchr2srmndxq3h2fijvyvr8b6zv680fpcjixm5bbhf";
+    sha256 = "0xg4nbx02a2kckr6p8pqjpv5rmp95bkmglgm1bma6f77s7hkab7q";
   };
 
   nativeBuildInputs = [ makeWrapper ];