diff --git a/pkgs/tools/security/cfssl/default.nix b/pkgs/tools/security/cfssl/default.nix
index 8d1c0df11a8..903b52f8bd0 100644
--- a/pkgs/tools/security/cfssl/default.nix
+++ b/pkgs/tools/security/cfssl/default.nix
@@ -2,13 +2,13 @@
 
 buildGoModule rec {
   pname = "cfssl";
-  version = "1.6.3";
+  version = "1.6.4";
 
   src = fetchFromGitHub {
     owner = "cloudflare";
     repo = "cfssl";
     rev = "v${version}";
-    sha256 = "sha256-aZjb4mWoevRnPyL+b7H+VjIVklNe+u054OsmJbxPx4g=";
+    sha256 = "sha256-QVKgfwyHzN6n8CnvGT9gg2ncfaDo+Pe4IAQhm4gNiz4=";
   };
 
   subPackages = [
@@ -22,7 +22,7 @@ buildGoModule rec {
     "cmd/mkbundle"
   ];
 
-  vendorSha256 = null;
+  vendorHash = null;
 
   doCheck = false;