diff --git a/frontend/internal-packages/agent/package.json b/frontend/internal-packages/agent/package.json
index 53562a0069..bba1fcce80 100644
--- a/frontend/internal-packages/agent/package.json
+++ b/frontend/internal-packages/agent/package.json
@@ -21,7 +21,7 @@
     "@valibot/to-json-schema": "1.3.0",
     "dotenv": "16.5.0",
     "fast-json-patch": "3.1.1",
-    "langsmith": "0.3.73",
+    "langsmith": "0.4.6",
     "neverthrow": "8.2.0",
     "uuid": "11.1.0",
     "valibot": "1.1.0"
diff --git a/frontend/internal-packages/schema-bench/package.json b/frontend/internal-packages/schema-bench/package.json
index 5e1002946b..1fcab2af0d 100644
--- a/frontend/internal-packages/schema-bench/package.json
+++ b/frontend/internal-packages/schema-bench/package.json
@@ -10,7 +10,7 @@
     "@liam-hq/neverthrow": "workspace:*",
     "@liam-hq/schema": "workspace:*",
     "dotenv": "16.5.0",
-    "langsmith": "0.3.73",
+    "langsmith": "0.4.6",
     "neverthrow": "8.2.0",
     "openai": "5.9.2",
     "tsx": "4.20.6",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 27c7449985..db0ab03a01 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -376,8 +376,8 @@ importers:
         specifier: 3.1.1
         version: 3.1.1
       langsmith:
-        specifier: 0.3.73
-        version: 0.3.73(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.12.2(ws@8.18.3)(zod@3.25.76))
+        specifier: 0.4.6
+        version: 0.4.6(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.12.2(ws@8.18.3)(zod@3.25.76))
       neverthrow:
         specifier: 8.2.0
         version: 8.2.0
@@ -668,8 +668,8 @@ importers:
         specifier: 16.5.0
         version: 16.5.0
       langsmith:
-        specifier: 0.3.73
-        version: 0.3.73(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.9.2(ws@8.18.3)(zod@3.25.76))
+        specifier: 0.4.6
+        version: 0.4.6(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.9.2(ws@8.18.3)(zod@3.25.76))
       neverthrow:
         specifier: 8.2.0
         version: 8.2.0
@@ -8424,6 +8424,23 @@ packages:
       openai:
         optional: true
 
+  langsmith@0.4.6:
+    resolution: {integrity: sha512-9aYop1fEwA8RgFuvv8XPeV9ieeSnKnVRn3bNemkFQCyINLAxfNHC547bVMW8i8MuS1F1pgKwopqhLNf80qS1bQ==}
+    peerDependencies:
+      '@opentelemetry/api': '*'
+      '@opentelemetry/exporter-trace-otlp-proto': '*'
+      '@opentelemetry/sdk-trace-base': '*'
+      openai: '*'
+    peerDependenciesMeta:
+      '@opentelemetry/api':
+        optional: true
+      '@opentelemetry/exporter-trace-otlp-proto':
+        optional: true
+      '@opentelemetry/sdk-trace-base':
+        optional: true
+      openai:
+        optional: true
+
   leac@0.6.0:
     resolution: {integrity: sha512-y+SqErxb8h7nE/fiEX07jsbuhrpO9lL8eca7/Y1nuWV2moNlXhyd59iDGcRf6moVyDMbmTNzL40SUyrFU/yDpg==}
 
@@ -19313,7 +19330,7 @@ snapshots:
       isstream: 0.1.2
       jsonwebtoken: 9.0.2
       mime-types: 2.1.35
-      retry-axios: 2.6.0(axios@1.13.0)
+      retry-axios: 2.6.0(axios@1.13.0(debug@4.4.3))
       tough-cookie: 4.1.4
     transitivePeerDependencies:
       - supports-color
@@ -19843,13 +19860,25 @@ snapshots:
       '@opentelemetry/sdk-trace-base': 2.2.0(@opentelemetry/api@1.9.0)
       openai: 5.12.2(ws@8.18.3)(zod@3.25.76)
 
-  langsmith@0.3.73(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.9.2(ws@8.18.3)(zod@3.25.76)):
+  langsmith@0.4.6(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.12.2(ws@8.18.3)(zod@3.25.76)):
+    dependencies:
+      '@types/uuid': 10.0.0
+      chalk: 4.1.2
+      console-table-printer: 2.15.0
+      p-queue: 6.6.2
+      semver: 7.7.3
+      uuid: 10.0.0
+    optionalDependencies:
+      '@opentelemetry/api': 1.9.0
+      '@opentelemetry/sdk-trace-base': 2.2.0(@opentelemetry/api@1.9.0)
+      openai: 5.12.2(ws@8.18.3)(zod@3.25.76)
+
+  langsmith@0.4.6(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@5.9.2(ws@8.18.3)(zod@3.25.76)):
     dependencies:
       '@types/uuid': 10.0.0
       chalk: 4.1.2
       console-table-printer: 2.15.0
       p-queue: 6.6.2
-      p-retry: 4.6.2
       semver: 7.7.3
       uuid: 10.0.0
     optionalDependencies:
@@ -22019,7 +22048,7 @@ snapshots:
       onetime: 7.0.0
       signal-exit: 4.1.0
 
-  retry-axios@2.6.0(axios@1.13.0):
+  retry-axios@2.6.0(axios@1.13.0(debug@4.4.3)):
     dependencies:
       axios: 1.13.0(debug@4.4.3)
 
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 57a0e22477..f3438ddc37 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -9,3 +9,5 @@ minimumReleaseAgeExclude:
   - "@modelcontextprotocol/sdk@1.26.0"
   # Renovate security update: storybook@9.1.19
   - storybook@9.1.19
+  # Renovate security update: langsmith@0.4.6
+  - langsmith@0.4.6