diff --git a/.yarn/releases/yarn-1.22.18.cjs b/.yarn/releases/yarn-1.22.18.cjs
deleted file mode 100755
index 7da811e1..00000000
Binary files a/.yarn/releases/yarn-1.22.18.cjs and /dev/null differ
diff --git a/.yarn/releases/yarn-4.13.0.cjs b/.yarn/releases/yarn-4.13.0.cjs
new file mode 100755
index 00000000..dc3067ee
Binary files /dev/null and b/.yarn/releases/yarn-4.13.0.cjs differ
diff --git a/.yarn/releases/yarn-4.5.1.cjs b/.yarn/releases/yarn-4.5.1.cjs
deleted file mode 100755
index 2a9a9203..00000000
Binary files a/.yarn/releases/yarn-4.5.1.cjs and /dev/null differ
diff --git a/.yarnrc.yml b/.yarnrc.yml
index 225c9c14..93941c7f 100644
--- a/.yarnrc.yml
+++ b/.yarnrc.yml
@@ -1,3 +1,5 @@
 nodeLinker: node-modules
 
-yarnPath: .yarn/releases/yarn-4.5.1.cjs
+yarnPath: .yarn/releases/yarn-4.13.0.cjs
+
+npmMinimalAgeGate: 7d
diff --git a/AGENTS.md b/AGENTS.md
index 494e44f8..dd51f871 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -29,7 +29,7 @@ yarn setup          # Install dependencies
 yarn dev            # Start full stack with worktree-isolated ports
 ```
 
-The project uses **Yarn 4.5.1** workspaces. Docker Compose manages ClickHouse,
+The project uses **Yarn 4.13.0** workspaces. Docker Compose manages ClickHouse,
 MongoDB, and the OTel Collector.
 
 **This repo is multi-agent friendly.** `yarn dev`, `make dev-int`, and
diff --git a/package.json b/package.json
index f7edf47d..f17202d1 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
       "prettier --write --ignore-unknown"
     ]
   },
-  "packageManager": "yarn@4.5.1",
+  "packageManager": "yarn@4.13.0",
   "resolutions": {
     "@types/react": "19.0.7",
     "@types/react-dom": "19.0.3",
diff --git a/yarn.lock b/yarn.lock
index fb70a55e..bcc06044 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -27233,11 +27233,11 @@ __metadata:
 
 "typescript@patch:typescript@npm%3A^5.9.3#optional!builtin<compat/typescript>":
   version: 5.9.3
-  resolution: "typescript@patch:typescript@npm%3A5.9.3#optional!builtin<compat/typescript>::version=5.9.3&hash=cef18b"
+  resolution: "typescript@patch:typescript@npm%3A5.9.3#optional!builtin<compat/typescript>::version=5.9.3&hash=5786d5"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 10c0/6f7e53bf0d9702350deeb6f35e08b69cbc8b958c33e0ec77bdc0ad6a6c8e280f3959dcbfde6f5b0848bece57810696489deaaa53d75de3578ff255d168c1efbd
+  checksum: 10c0/ad09fdf7a756814dce65bc60c1657b40d44451346858eea230e10f2e95a289d9183b6e32e5c11e95acc0ccc214b4f36289dcad4bf1886b0adb84d711d336a430
   languageName: node
   linkType: hard