diff --git a/dev-packages/cloudflare-integration-tests/package.json b/dev-packages/cloudflare-integration-tests/package.json
index 592903afa3a5..dd830255c0a8 100644
--- a/dev-packages/cloudflare-integration-tests/package.json
+++ b/dev-packages/cloudflare-integration-tests/package.json
@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "ai": "^6.0.0",
-    "@anthropic-ai/sdk": "0.63.0",
+    "@anthropic-ai/sdk": "0.133.0",
     "@google/genai": "^1.20.0",
     "@langchain/core": "^1.2.17",
     "@langchain/langgraph": "^1.0.1",
diff --git a/dev-packages/node-integration-tests/package.json b/dev-packages/node-integration-tests/package.json
index ef3fdb556cac..c44960c5004f 100644
--- a/dev-packages/node-integration-tests/package.json
+++ b/dev-packages/node-integration-tests/package.json
@@ -25,7 +25,7 @@
     "test:watch": "yarn test --watch"
   },
   "dependencies": {
-    "@anthropic-ai/sdk": "0.63.0",
+    "@anthropic-ai/sdk": "0.133.0",
     "@apollo/server": "^5.5.0",
     "@aws-sdk/client-dynamodb": "^3.1046.0",
     "@aws-sdk/client-kinesis": "^3.1146.0",
diff --git a/yarn.lock b/yarn.lock
index 17ff00432901..311528271cdf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -390,12 +390,13 @@
   dependencies:
     tslib "^2.3.0"
 
-"@anthropic-ai/sdk@0.63.0":
-  version "0.63.0"
-  resolved "https://registry.yarnpkg.com/@anthropic-ai/sdk/-/sdk-0.63.0.tgz#725ea136ebf2b0fc7ebfdcb655a1d69b60bd3927"
-  integrity sha512-g2KzDcVXxT2d/SMuVJHeJ6T2loj6jFMt+Nj+I6bfwXWNDMoOP0HhiWr+5RivRV7Yv++jBurDGr76XBCc66R79A==
+"@anthropic-ai/sdk@0.133.0":
+  version "0.133.0"
+  resolved "https://registry.yarnpkg.com/@anthropic-ai/sdk/-/sdk-0.133.0.tgz#08db7874dde5e2e02b42d12680315efa72fa9799"
+  integrity sha512-jlqUN8p8ESTJj+GJnA4KjzbEfF1waEoGzRT8jwytlYGFFgv+/DUQOxlYGvYw10UzhD1kwLqYzxvA3FrTB2YWuQ==
   dependencies:
     json-schema-to-ts "^3.1.1"
+    standardwebhooks "^1.0.0"
 
 "@anthropic-ai/sdk@^0.65.0":
   version "0.65.0"
@@ -8801,6 +8802,11 @@
   resolved "https://registry.yarnpkg.com/@speed-highlight/core/-/core-1.2.15.tgz#88c45609a2b5c2293a2e1935417c507f98f39d0b"
   integrity sha512-BMq1K3DsElxDWawkX6eLg9+CKJrTVGCBAWVuHXVUV2u0s2711qiChLSId6ikYPfxhdYocLNt3wWwSvDiTvFabw==
 
+"@stablelib/base64@^1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/@stablelib/base64/-/base64-1.0.1.tgz#bdfc1c6d3a62d7a3b7bbc65b6cce1bb4561641be"
+  integrity sha512-1bnPQqSxSuc3Ii6MhBysoWCg58j97aUjuCSZrGSmDxNqtytIi0k8utUenAwTZN4V5mXXYGsVUI9zeBqy+jBOSQ==
+
 "@standard-schema/spec@1.1.0", "@standard-schema/spec@^1.0.0", "@standard-schema/spec@^1.1.0":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@standard-schema/spec/-/spec-1.1.0.tgz#a79b55dbaf8604812f52d140b2c9ab41bc150bb8"
@@ -15811,6 +15817,11 @@ fast-safe-stringify@2.1.1:
   resolved "https://registry.yarnpkg.com/fast-safe-stringify/-/fast-safe-stringify-2.1.1.tgz#c406a83b6e70d9e35ce3b30a81141df30aeba884"
   integrity sha512-W+KJc2dmILlPplD/H4K9l9LcAHAfPtP6BY84uVLXQ6Evcz9Lcg33Y2z1IVblT6xdY54PXYVHEv+0Wpq8Io6zkA==
 
+fast-sha256@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/fast-sha256/-/fast-sha256-1.3.0.tgz#7916ba2054eeb255982608cccd0f6660c79b7ae6"
+  integrity sha512-n11RGP/lrWEFI/bWdygLxhI+pVeo1ZYIVwvvPkW7azl/rOy+F3HYRZ2K5zeE9mmkhQppyv9sQFx0JM9UabnpPQ==
+
 fast-sourcemap-concat@^2.1.0, fast-sourcemap-concat@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/fast-sourcemap-concat/-/fast-sourcemap-concat-2.1.1.tgz#3647fd5876deace53d9a1c418061199417911801"
@@ -25664,6 +25675,14 @@ standard-as-callback@2.1.0, standard-as-callback@^2.1.0:
   resolved "https://registry.yarnpkg.com/standard-as-callback/-/standard-as-callback-2.1.0.tgz#8953fc05359868a77b5b9739a665c5977bb7df45"
   integrity sha512-qoRRSyROncaz1z0mvYqIE4lCd9p2R90i6GxW3uZv5ucSu8tU7B5HXUP1gG8pVZsYNVaXjk8ClXHPttLyxAL48A==
 
+standardwebhooks@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/standardwebhooks/-/standardwebhooks-1.1.1.tgz#25b98fa2bbe4edad7b42778135c923563e3d5e2f"
+  integrity sha512-bCbX9ZEyFkWPsRz7Bl3NuQUJohmwGSev/yhr7vhaGPlc4AfIrspIRa6cPTBuI1ItmrTDJ4d/S2hCsfe4+vQGnQ==
+  dependencies:
+    "@stablelib/base64" "^1.0.0"
+    fast-sha256 "^1.3.0"
+
 "statuses@>= 1.4.0 < 2", "statuses@>= 1.5.0 < 2", statuses@^1.5.0, statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"