diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1394dbbf..38f07cbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 0.6.2
 
 - Fix bug where mode selection would sometimes fire before initialization was complete.
+- Update to @anthropic-ai/claude-agent-sdk@v0.1.19
 
 ## 0.6.1
 
diff --git a/package-lock.json b/package-lock.json
index 27c6283f..e875e15d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,8 @@
       "license": "Apache-2.0",
       "dependencies": {
         "@agentclientprotocol/sdk": "0.4.8",
-        "@anthropic-ai/claude-agent-sdk": "0.1.15",
-        "@anthropic-ai/claude-code": "2.0.15",
+        "@anthropic-ai/claude-agent-sdk": "0.1.19",
+        "@anthropic-ai/claude-code": "2.0.19",
         "@modelcontextprotocol/sdk": "1.20.0",
         "diff": "8.0.2",
         "express": "5.1.0",
@@ -22,10 +22,10 @@
         "claude-code-acp": "dist/index.js"
       },
       "devDependencies": {
-        "@anthropic-ai/sdk": "^0.65.0",
+        "@anthropic-ai/sdk": "^0.66.0",
         "@types/express": "5.0.3",
         "@types/minimist": "1.2.5",
-        "@types/node": "24.7.2",
+        "@types/node": "24.8.0",
         "@types/uuid": "10.0.0",
         "@typescript-eslint/eslint-plugin": "8.46.1",
         "@typescript-eslint/parser": "8.46.1",
@@ -49,9 +49,9 @@
       }
     },
     "node_modules/@anthropic-ai/claude-agent-sdk": {
-      "version": "0.1.15",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-agent-sdk/-/claude-agent-sdk-0.1.15.tgz",
-      "integrity": "sha512-x0UR/YW87lRel3wYVimWjAkUOEGapg/nXx2GYNLbUD1ORsetRHeXZGFdJMuhRkk1Jt9sbn5m/RpT42b5R0pgYg==",
+      "version": "0.1.19",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-agent-sdk/-/claude-agent-sdk-0.1.19.tgz",
+      "integrity": "sha512-k4GtWygAkp3d0Npo/cS16MAfnSEcjttT5ijZzEWIzpWClL5wOYCpVyuMjnZGsYPDDZCb26pVb7Wm0ZDFj149Cg==",
       "license": "SEE LICENSE IN README.md",
       "engines": {
         "node": ">=18.0.0"
@@ -69,9 +69,9 @@
       }
     },
     "node_modules/@anthropic-ai/claude-code": {
-      "version": "2.0.15",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-2.0.15.tgz",
-      "integrity": "sha512-ZQFvnzBX7bQg5FaX9fvRDjS3JjUv0SLHDPXbKHIsrV3HBOMsNti9VtqGUI1MuPnV5hUHrthPe95mMSBWwdKh1w==",
+      "version": "2.0.19",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-2.0.19.tgz",
+      "integrity": "sha512-9InIRKliS3TaPbWfuzJA0SoC3hLQ0Lk2lmBVFBChgd8f6aTVV5dQwHNgDnLjtl1L+HhRfMqjSgBfNaeUmzet/A==",
       "license": "SEE LICENSE IN README.md",
       "bin": {
         "claude": "cli.js"
@@ -89,9 +89,9 @@
       }
     },
     "node_modules/@anthropic-ai/sdk": {
-      "version": "0.65.0",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.65.0.tgz",
-      "integrity": "sha512-zIdPOcrCVEI8t3Di40nH4z9EoeyGZfXbYSvWdDLsB/KkaSYMnEgC7gmcgWu83g2NTn1ZTpbMvpdttWDGGIk6zw==",
+      "version": "0.66.0",
+      "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.66.0.tgz",
+      "integrity": "sha512-GBSSby0P4BW/sOdvsTXaHJDPnGEL5tuB4TtsU4SXG7+dVULQ9MkKgNznCALDCgSV5yhrtQlctvEdMqePVIXTiw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1568,9 +1568,9 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "24.7.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.7.2.tgz",
-      "integrity": "sha512-/NbVmcGTP+lj5oa4yiYxxeBjRivKQ5Ns1eSZeB99ExsEQ6rX5XYU1Zy/gGxY/ilqtD4Etx9mKyrPxZRetiahhA==",
+      "version": "24.8.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.8.0.tgz",
+      "integrity": "sha512-5x08bUtU8hfboMTrJ7mEO4CpepS9yBwAqcL52y86SWNmbPX8LVbNs3EP4cNrIZgdjk2NAlP2ahNihozpoZIxSg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 768246e7..cdc62c42 100644
--- a/package.json
+++ b/package.json
@@ -52,8 +52,8 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@agentclientprotocol/sdk": "0.4.8",
-    "@anthropic-ai/claude-agent-sdk": "0.1.15",
-    "@anthropic-ai/claude-code": "2.0.15",
+    "@anthropic-ai/claude-agent-sdk": "0.1.19",
+    "@anthropic-ai/claude-code": "2.0.19",
     "@modelcontextprotocol/sdk": "1.20.0",
     "diff": "8.0.2",
     "express": "5.1.0",
@@ -61,10 +61,10 @@
     "uuid": "13.0.0"
   },
   "devDependencies": {
-    "@anthropic-ai/sdk": "^0.65.0",
+    "@anthropic-ai/sdk": "^0.66.0",
     "@types/express": "5.0.3",
     "@types/minimist": "1.2.5",
-    "@types/node": "24.7.2",
+    "@types/node": "24.8.0",
     "@types/uuid": "10.0.0",
     "@typescript-eslint/eslint-plugin": "8.46.1",
     "@typescript-eslint/parser": "8.46.1",