diff --git a/pkgs/development/compilers/circt/default.nix b/pkgs/development/compilers/circt/default.nix
index d06da963dad2..4d1814c4a3a9 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 = "1.68.0";
+  version = "1.70.0";
   src = fetchFromGitHub {
     owner = "llvm";
     repo = "circt";
     rev = "firtool-${version}";
-    hash = "sha256-N2OpKzniVUqi+L48mD5W1wW1GdECPVWZCo30f4XD3n0=";
+    hash = "sha256-OELkfyN0fxnQIGQxfwuRM/+DYdb+8m5wlT/H+eQNjq0=";
     fetchSubmodules = true;
   };