diff --git a/e2e/package.json b/e2e/package.json
index 40082f1a8..340210521 100644
--- a/e2e/package.json
+++ b/e2e/package.json
@@ -14,7 +14,7 @@
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     "@opentelemetry/api": ">=1.9.0",
     "@opentelemetry/context-async-hooks": ">=1.9.0",
-    "@opentelemetry/sdk-trace-base": ">=1.9.0",
+    "@opentelemetry/sdk-trace-base": ">=2.8.0",
     "@types/node": "^20.10.5",
     "braintrust": "workspace:^",
     "tsx": "^4.21.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b12340614..4b044d9df 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -95,8 +95,8 @@ importers:
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         version: 2.6.1(@opentelemetry/api@1.9.0)
       '@opentelemetry/sdk-trace-base':
-        specifier: '>=1.9.0'
-        version: 2.6.1(@opentelemetry/api@1.9.0)
+        specifier: '>=2.8.0'
+        version: 2.8.0(@opentelemetry/api@1.9.0)
       '@types/node':
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         version: 20.19.40
@@ -145,16 +145,16 @@ importers:
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+        version: 1.3.5(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))
       '@langchain/core':
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+        version: 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
       '@langchain/langgraph':
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+        version: 1.0.7(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(zod-to-json-schema@3.25.1(zod@3.25.76))(zod@3.25.76)
       '@langchain/openai':
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+        version: 1.2.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(ws@8.20.1)
       '@types/node':
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         version: 20.19.40
@@ -1218,6 +1218,12 @@ packages:
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+  '@opentelemetry/core@2.8.0':
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+    engines: {node: ^18.19.0 || >=20.6.0}
+    peerDependencies:
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+
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@@ -1248,6 +1254,12 @@ packages:
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+    engines: {node: ^18.19.0 || >=20.6.0}
+    peerDependencies:
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@@ -1272,6 +1284,12 @@ packages:
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     engines: {node: ^18 || >=20}
+    deprecated: unmaintained
     hasBin: true
     peerDependencies:
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@@ -4769,20 +4788,20 @@ snapshots:
 
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+  '@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)':
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       ansi-styles: 5.2.0
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-      langsmith: 0.7.1(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
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       mustache: 4.2.0
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@@ -4794,26 +4813,26 @@ snapshots:
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+  '@langchain/langgraph-checkpoint@1.0.0(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))':
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+      '@langchain/core': 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
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+      '@langchain/langgraph-sdk': 1.3.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)
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@@ -4990,6 +5009,11 @@ snapshots:
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+  '@opentelemetry/core@2.8.0(@opentelemetry/api@1.9.0)':
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+      '@opentelemetry/semantic-conventions': 1.41.1
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+  '@opentelemetry/resources@2.8.0(@opentelemetry/api@1.9.0)':
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+      '@opentelemetry/core': 2.8.0(@opentelemetry/api@1.9.0)
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+  '@opentelemetry/sdk-trace-base@2.8.0(@opentelemetry/api@1.9.0)':
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   '@oxc-resolver/binding-android-arm-eabi@11.19.1':
@@ -6687,12 +6724,12 @@ snapshots:
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       ws: 8.20.1