diff --git a/.github/.release-please-manifest.json b/.github/.release-please-manifest.json
index a915e8c..37fcefa 100644
--- a/.github/.release-please-manifest.json
+++ b/.github/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.1.1"
+  ".": "1.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9119ee4..e7959fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.0.0](https://github.com/jimeh/release-please-manifest-action/compare/v0.1.1...v1.0.0) (2023-05-08)
+
+
+### Features
+
+* **release:** prepare for v1.0.0 ([22f0022](https://github.com/jimeh/release-please-manifest-action/commit/22f0022a0932f5639bb4808df16e76c245256880))
+
 ## [0.1.1](https://github.com/jimeh/release-please-manifest-action/compare/v0.1.0...v0.1.1) (2023-05-08)
 
 
diff --git a/README.md b/README.md
index 89cbe3b..2e4f696 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: jimeh/release-please-manifest-action@v0
+      - uses: jimeh/release-please-manifest-action@v1
 ```
 
 <!-- x-release-please-end -->
@@ -119,7 +119,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: jimeh/release-please-manifest-action@v0
+      - uses: jimeh/release-please-manifest-action@v1
         with:
           token: ${{ secrets.RELEASE_PAT_TOKEN }}
 ```
@@ -179,7 +179,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: jimeh/release-please-manifest-action@v0
+      - uses: jimeh/release-please-manifest-action@v1
         with:
           app-id: ${{ secrets.RELEASE_BOT_APP_ID }}
           private-key: ${{ secrets.RELEASE_BOT_PRIVATE_KEY }}