diff --git a/pkgs/applications/blockchains/optimism/default.nix b/pkgs/applications/blockchains/optimism/default.nix
index 945ef865f964..73f26ee494b9 100644
--- a/pkgs/applications/blockchains/optimism/default.nix
+++ b/pkgs/applications/blockchains/optimism/default.nix
@@ -6,19 +6,19 @@
 
 buildGoModule rec {
   pname = "optimism";
-  version = "1.9.1";
+  version = "1.9.4";
 
   src = fetchFromGitHub {
     owner = "ethereum-optimism";
     repo = "optimism";
     rev = "op-node/v${version}";
-    hash = "sha256-PlwpN8P1t0NNIU+Ys50dIXmfUQFIY9e1tLABiVK0JQo=";
+    hash = "sha256-pAmstWA6up0CvHEQW5RnDYumdwKP0i6fpz59EYTBsmU=";
     fetchSubmodules = true;
   };
 
   subPackages = [ "op-node/cmd" "op-proposer/cmd" "op-batcher/cmd" ];
 
-  vendorHash = "sha256-n1uJ/dkEjjsTdmL7TeHU4PKnBhiRrqCNtcGxK70Q0c4=";
+  vendorHash = "sha256-Sr9OECXbRa4SPe3owMto2EbnAIygeIEmZv73hvA6iww=";
 
   buildInputs = [
     libpcap