diff --git a/README.md b/README.md
index 8a155b0..d29da19 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ jobs:
   update-dependencies:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: Update dependencies
         uses: pdm-project/update-deps-action@main
@@ -32,7 +32,11 @@ with:
   # The PR title
   pr-title: "Update dependencies"
   # The update strategy, can be 'reuse', 'eager' or 'all'
-  update-strategy: eager
+  update-strategy: reuse
+  # The save strategy, can 'compatible', 'wildcard', 'exact' or 'minimum'
+  save-strategy: minimum
+  # Ignore the version constraint of packages in pyproject.toml
+  unconstrained: false
   # Whether to install PDM plugins before update
   install-plugins: "false"
   # Whether commit message contains signed-off-by
diff --git a/action.yml b/action.yml
index ee408c5..8224709 100644
--- a/action.yml
+++ b/action.yml
@@ -17,6 +17,14 @@ inputs:
     description: "The update strategy, can be 'reuse', 'eager' or 'all'"
     required: false
     default: "reuse"
+  save-strategy:
+    description: "The save strategy, can be 'compatible', 'wildcard', 'exact' or 'minimum'"
+    required: false
+    default: "minimum"
+  unconstrained:
+    description: "Ignore the version constraint of packages in pyproject.toml"
+    required: false
+    default: "false"
   install-plugins:
     description: "Whether install PDM plugins before update"
     required: false
@@ -41,7 +49,7 @@ runs:
       shell: bash
 
     - name: "Update dependencies"
-      run: pdm update --no-sync --update-${{ inputs.update-strategy }}
+      run: pdm update --no-sync --update-${{ inputs.update-strategy }} --save-${{ inputs.save-strategy }} ${{ inputs.unconstrained == 'true' && '--unconstrained' || '' }}
       shell: bash
       id: pdm-update