diff --git a/packages/cli/package.json b/packages/cli/package.json
index 0dde9f0..88b0bf4 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -14,7 +14,7 @@
     "@pipewright/pipeline-local": "0.3.0",
     "@pipewright/platform-contract": "0.1.0",
     "@pipewright/platform-github": "0.1.1",
-    "zod": "4.6.5"
+    "zod": "4.6.6"
   },
   "devDependencies": {
     "ajv": "8.20.0",
diff --git a/packages/pipeline-contract/package.json b/packages/pipeline-contract/package.json
index 504fa34..3ef716d 100644
--- a/packages/pipeline-contract/package.json
+++ b/packages/pipeline-contract/package.json
@@ -5,7 +5,7 @@
     "@exadev/json-compose": "1.0.0",
     "process-graph": "1.0.0",
     "trilean": "1.7.2",
-    "zod": "4.6.5"
+    "zod": "4.6.6"
   },
   "devDependencies": {
     "ajv": "8.20.0"
diff --git a/packages/pipeline-github-actions/package.json b/packages/pipeline-github-actions/package.json
index 465b338..de8d5e5 100644
--- a/packages/pipeline-github-actions/package.json
+++ b/packages/pipeline-github-actions/package.json
@@ -4,7 +4,7 @@
   "dependencies": {
     "@pipewright/pipeline-contract": "0.4.0",
     "@pipewright/yaml-emit": "0.1.0",
-    "zod": "4.6.5"
+    "zod": "4.6.6"
   },
   "exports": {
     ".": "./src/index.ts"
diff --git a/packages/platform-contract/package.json b/packages/platform-contract/package.json
index c3f1bef..1cff103 100644
--- a/packages/platform-contract/package.json
+++ b/packages/platform-contract/package.json
@@ -2,7 +2,7 @@
   "name": "@pipewright/platform-contract",
   "version": "0.1.0",
   "dependencies": {
-    "zod": "4.6.5"
+    "zod": "4.6.6"
   },
   "exports": {
     ".": "./src/index.ts"
diff --git a/packages/platform-github/package.json b/packages/platform-github/package.json
index c632c73..ea7503d 100644
--- a/packages/platform-github/package.json
+++ b/packages/platform-github/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.1",
   "dependencies": {
     "@pipewright/platform-contract": "0.1.0",
-    "zod": "4.6.5"
+    "zod": "4.6.6"
   },
   "exports": {
     ".": "./src/index.ts"