diff --git a/extensions/slack/package.json b/extensions/slack/package.json
index fae24dd64b5..939c674cc49 100644
--- a/extensions/slack/package.json
+++ b/extensions/slack/package.json
@@ -6,6 +6,7 @@
   "type": "module",
   "dependencies": {
     "@slack/bolt": "^4.7.2",
+    "@slack/types": "^2.20.1",
     "@slack/web-api": "^7.15.1",
     "https-proxy-agent": "^9.0.0"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f51955e27e2..9ee9b881b59 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1226,6 +1226,9 @@ importers:
       '@slack/bolt':
         specifier: ^4.7.2
         version: 4.7.2(@types/express@5.0.6)
+      '@slack/types':
+        specifier: ^2.20.1
+        version: 2.20.1
       '@slack/web-api':
         specifier: ^7.15.1
         version: 7.15.1