diff --git a/pkgs/by-name/ci/circumflex/package.nix b/pkgs/by-name/ci/circumflex/package.nix
index 9f352fdd5fc2..fec1c1c85bbc 100644
--- a/pkgs/by-name/ci/circumflex/package.nix
+++ b/pkgs/by-name/ci/circumflex/package.nix
@@ -9,16 +9,16 @@
 
 buildGoModule (finalAttrs: {
   pname = "circumflex";
-  version = "3.9";
+  version = "4.0";
 
   src = fetchFromGitHub {
     owner = "bensadeh";
     repo = "circumflex";
     tag = finalAttrs.version;
-    hash = "sha256-Wv0CSLXM6zMkK0FFAoe0oPpfD3Fq743jz+69qWh0njs=";
+    hash = "sha256-C5zjbs/34SUX23KDLLQvrVH9dNYT125cpnSCWyUhSqw=";
   };
 
-  vendorHash = "sha256-SlXTLL/6OElR5yJ86K2voq6Ui9Z+9CvXVjG0im92CTk=";
+  vendorHash = "sha256-zz0nYzjwiWnknfe82RAtCK7gOaI3j8lwwPxKqE0aGSA=";
 
   nativeBuildInputs = [ makeWrapper ];