diff --git a/pkgs/development/compilers/circt/default.nix b/pkgs/development/compilers/circt/default.nix
index 7bf6a64eeb84..d86898947030 100644
--- a/pkgs/development/compilers/circt/default.nix
+++ b/pkgs/development/compilers/circt/default.nix
@@ -13,12 +13,12 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "circt";
-  version = "1.30.0";
+  version = "1.34.0";
   src = fetchFromGitHub {
     owner = "llvm";
     repo = "circt";
     rev = "firtool-${version}";
-    sha256 = "sha256-VP1QwY/gA8wxjpzbAlEV5r2Q8sTt3K2sGdKmxr6ndB8=";
+    sha256 = "sha256-QrCli0nNlvOM4taqWZ6GzK5luvXmyxaCgfDlXSRLSQA=";
     fetchSubmodules = true;
   };