diff --git a/.gitea/workflows/nix-update.yml b/.gitea/workflows/nix-update.yml
index c0d9ad4..467d5a8 100644
--- a/.gitea/workflows/nix-update.yml
+++ b/.gitea/workflows/nix-update.yml
@@ -74,8 +74,20 @@ jobs:
              local pkg=$1
              local before_hash=$(git rev-parse HEAD)
              
+             # Build arguments array
+             local args=("--flake" "--commit")
+             
+             # Special handling for opencode
+             if [ "$pkg" = "opencode" ]; then
+                echo "ℹ️ Adding --subpackage node_modules for opencode"
+                args+=("--subpackage" "node_modules")
+             fi
+             
+             # Add package name
+             args+=("$pkg")
+             
              echo "Checking $pkg..."
-             if nix-update --flake --commit "$pkg" 2>&1 | tee /tmp/update-${pkg}.log; then
+             if nix-update "${args[@]}" 2>&1 | tee /tmp/update-${pkg}.log; then
                 if [ "$(check_commit "$before_hash")" = "true" ]; then
                    echo "✓ Updated $pkg"
                    return 0
diff --git a/pkgs/opencode/default.nix b/pkgs/opencode/default.nix
index af2ffce..a3fe1ee 100644
--- a/pkgs/opencode/default.nix
+++ b/pkgs/opencode/default.nix
@@ -13,12 +13,12 @@
   writableTmpDirAsHomeHook,
 }: let
   pname = "opencode";
-  version = "1.1.25";
+  version = "1.1.18";
   src = fetchFromGitHub {
     owner = "anomalyco";
     repo = "opencode";
     tag = "v${version}";
-    hash = "sha256-aF+4LL0x9wU2Ktrv/nJE2VXgUeXFrwJ16pa1sGNhpi4=";
+    hash = "sha256-3A4s0FpjZuGB0HGMQVBXfWq+0yHmeIvnEQTSX3amV4I=";
   };
 
   node_modules = stdenvNoCC.mkDerivation {
@@ -66,7 +66,7 @@
     # NOTE: Required else we get errors that our fixed-output derivation references store paths
     dontFixup = true;
 
-    outputHash = "sha256-qheQCN71VM3M35+j9XhaCdxQNo5ze8mV8sDFaX0WVWM=";
+    outputHash = "sha256-zSco4ORQQOqV3vMPuP+M/q/hBa+MJGnTKIlxgngMA3g=";
     outputHashAlgo = "sha256";
     outputHashMode = "recursive";
   };