diff --git a/pkgs/development/compilers/circt/default.nix b/pkgs/development/compilers/circt/default.nix
index dfda406ab9b6..bef2c568de13 100644
--- a/pkgs/development/compilers/circt/default.nix
+++ b/pkgs/development/compilers/circt/default.nix
@@ -17,12 +17,12 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "circt";
-  version = "1.64.0";
+  version = "1.65.0";
   src = fetchFromGitHub {
     owner = "llvm";
     repo = "circt";
     rev = "firtool-${version}";
-    sha256 = "sha256-tZ8IQa01hYVJZdUKPd0rMGfAScuhZPzpwP51WWXERGw=";
+    sha256 = "sha256-RYQAnvU+yoHGrU9zVvrD1/O80ioHEq2Cvo/MIjI6uTo=";
     fetchSubmodules = true;
   };