diff --git a/.github/workflows/biome.yaml b/.github/workflows/biome.yaml
index 116f87b..3ad6d1a 100644
--- a/.github/workflows/biome.yaml
+++ b/.github/workflows/biome.yaml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: ["main"]
 
+permissions:
+  contents: read
+
 jobs:
   check:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 597269c..9c1424e 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -6,6 +6,10 @@ on:
   pull_request:
     branches: ["main"]
 
+permissions:
+  contents: read
+  pull-requests: write
+
 jobs:
   test:
     runs-on: ubuntu-latest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a283258..9c66315 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [1.3.2](https://github.com/toiroakr/zod-empty/compare/v1.3.1...v1.3.2) (2025-01-08)
+
+
+### Bug Fixes
+
+* empty effect ([7742b63](https://github.com/toiroakr/zod-empty/commit/7742b63b90c65d20f5b10da80428e0cbc48c5939))
+
 ## [1.3.1](https://github.com/toiroakr/zod-empty/compare/v1.3.0...v1.3.1) (2025-01-06)
 
 
diff --git a/package-lock.json b/package-lock.json
index 96565e8..ece76a1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "zod-empty",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "zod-empty",
-      "version": "1.3.1",
+      "version": "1.3.2",
       "license": "MIT",
       "dependencies": {
         "just-clone": "6.2.0"
diff --git a/package.json b/package.json
index 8b444bd..7c96dac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zod-empty",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "generate minimum data from zod schema.",
   "types": "./cjs/index.d.ts",
   "main": "./cjs/index.cjs",
diff --git a/src/index.ts b/src/index.ts
index 7ece4ec..818246e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -124,6 +124,8 @@ export function empty<T extends ZodTypeAny>(schema: T): input<T> {
     case "ZodNullable":
     case "ZodOptional":
       return empty(def.innerType);
+    case "ZodEffects":
+      return empty(def.schema);
     case "ZodLiteral":
       return def.value;
     case "ZodNaN":