diff --git a/js/package.json b/js/package.json
index 279a507ca..f67db8f95 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "langsmith",
-  "version": "0.1.39",
+  "version": "0.1.40",
   "description": "Client library to connect to the LangSmith LLM Tracing and Evaluation Platform.",
   "packageManager": "yarn@1.22.19",
   "files": [
@@ -276,4 +276,4 @@
     },
     "./package.json": "./package.json"
   }
-}
+}
\ No newline at end of file
diff --git a/js/src/index.ts b/js/src/index.ts
index 73f1007da..b2e3baf5e 100644
--- a/js/src/index.ts
+++ b/js/src/index.ts
@@ -12,4 +12,4 @@ export type {
 export { RunTree, type RunTreeConfig } from "./run_trees.js";
 
 // Update using yarn bump-version
-export const __version__ = "0.1.39";
+export const __version__ = "0.1.40";