diff --git a/pkgs/by-name/ip/ipv6calc/package.nix b/pkgs/by-name/ip/ipv6calc/package.nix
index bcdc3ad5c87a..24a496f42636 100644
--- a/pkgs/by-name/ip/ipv6calc/package.nix
+++ b/pkgs/by-name/ip/ipv6calc/package.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation rec {
   pname = "ipv6calc";
-  version = "4.3.2";
+  version = "4.3.3";
 
   src = fetchFromGitHub {
     owner = "pbiering";
     repo = "ipv6calc";
     rev = version;
-    sha256 = "sha256-s+B549Ni0AnvAeHD9VnDB67j3quFlqzF1pV/fpvCnlM=";
+    sha256 = "sha256-+oh9sXcww9S2WtOgLXP7mSGGnGmaSSixZIQk5CZwqyU=";
   };
 
   buildInputs = [