diff --git a/bun.lock b/bun.lock
index cc2dc5a0..bbc05619 100644
--- a/bun.lock
+++ b/bun.lock
@@ -8,7 +8,7 @@
         "agent-control-specification": "0.3.1-beta.0",
       },
       "devDependencies": {
-        "bun-types": "^1.3.14",
+        "bun-types": "^1.4.2",
         "guardian": "workspace:*",
         "host-adapter": "workspace:*",
         "typescript": "^7.0.2",
@@ -165,7 +165,7 @@
 
     "ajv-formats": ["ajv-formats@3.0.1", "", { "dependencies": { "ajv": "^8.0.0" } }, "sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ=="],
 
-    "bun-types": ["bun-types@1.3.14", "", { "dependencies": { "@types/node": "*" } }, "sha512-4N0ig0fEomHt5R0KCFWjovxow98rIoRwKolrYdCcknNwMekCXRnWEUvgu5soYV8QXtVsrUD8B95MBOZGPvr6KQ=="],
+    "bun-types": ["bun-types@1.4.2", "", { "dependencies": { "@types/node": "*" } }, "sha512-bxV1FgK7yBIzjRe5zBozIM4Bem11ZJcCXSrjWRG3YWLt8yFDePu4cLjpebO8OvPeIE9trbyPF4fuj3Cia4Fj3w=="],
 
     "claude-code-host": ["claude-code-host@workspace:hosts/claude-code"],
 
diff --git a/package.json b/package.json
index 6b920dcb..44e1610c 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "agent-control-specification": "0.3.1-beta.0"
   },
   "devDependencies": {
-    "bun-types": "^1.3.14",
+    "bun-types": "^1.4.2",
     "typescript": "^7.0.2",
     "host-adapter": "workspace:*",
     "guardian": "workspace:*"