diff --git a/pkgs/tools/security/masscan/default.nix b/pkgs/tools/security/masscan/default.nix
index 0f45edcff6cf..a192f00cef76 100644
--- a/pkgs/tools/security/masscan/default.nix
+++ b/pkgs/tools/security/masscan/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "masscan";
-  version = "1.3.0";
+  version = "1.3.1";
 
   src = fetchFromGitHub {
     owner  = "robertdavidgraham";
     repo   = "masscan";
     rev    = version;
-    sha256 = "04nlnficybgxa16kq9fwrrfjsbyiaps4mikfqgdr206fkqk9i05y";
+    sha256 = "sha256-gH0zOf2kl6cqws1nB3QPtaAjpvNAgbawXRx77bqJTIc=";
   };
 
   nativeBuildInputs = [ makeWrapper ];