diff --git a/pkgs/by-name/ci/circom/package.nix b/pkgs/by-name/ci/circom/package.nix
index f142a7fc234a..895f3a6ba3de 100644
--- a/pkgs/by-name/ci/circom/package.nix
+++ b/pkgs/by-name/ci/circom/package.nix
@@ -5,16 +5,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "circom";
-  version = "2.1.8";
+  version = "2.1.9";
 
   src = fetchFromGitHub {
     owner = "iden3";
     repo = "circom";
     rev = "v${version}";
-    hash = "sha256-S+POXACM2XswpIaUze/wfVj2QYjRKJ2JGP1L88dfHA8=";
+    hash = "sha256-l8204koaKTluYEvk6j9+MokdOqFCq2oExT5P2aW3kzc=";
   };
 
-  cargoHash = "sha256-gf9wWkeibj61Fh9Q+JqKVUVh2WpVBdM1Ei/Dg1/c+5E=";
+  cargoHash = "sha256-M4FR/dPLIq1Ps0j1B69khmSl4uRE5wxN4dh3iuO/9A4=";
   doCheck = false;
 
   meta = with lib; {