diff --git a/.changeset/smart-carrots-rescue.md b/.changeset/smart-carrots-rescue.md
new file mode 100644
index 0000000..81da5bf
--- /dev/null
+++ b/.changeset/smart-carrots-rescue.md
@@ -0,0 +1,5 @@
+---
+"@inngest/workflow-kit": patch
+---
+
+Include TypeScript in dev dependencies
diff --git a/packages/workflow/package.json b/packages/workflow/package.json
index 38486b6..d6cd87a 100644
--- a/packages/workflow/package.json
+++ b/packages/workflow/package.json
@@ -92,6 +92,7 @@
     "preset": "link:@storybook/react-vite/preset",
     "prop-types": "^15.8.1",
     "storybook": "^8.2.9",
-    "ts-jest": "^29.1.5"
+    "ts-jest": "^29.1.5",
+    "typescript": "^5.6.2"
   }
-}
+}
\ No newline at end of file
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 322051e..01ad1b5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -105,6 +105,9 @@ importers:
       ts-jest:
         specifier: ^29.1.5
         version: 29.2.5(@babel/core@7.25.2)(@jest/transform@29.7.0)(@jest/types@29.6.3)(babel-jest@29.7.0(@babel/core@7.25.2))(esbuild@0.23.1)(jest@29.7.0(@types/node@22.5.5))(typescript@5.6.2)
+      typescript:
+        specifier: 5.6.2
+        version: 5.6.2
 
 packages: