diff --git a/README.md b/README.md
index e7faa64..13667f2 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@ For default values you only need:
 | params                       | destination         | default                  |
 |------------------------------|---------------------|--------------------------|
 | checkout-fetch-depth         | fetch-depth         |                          |
+| checkout-submodules          | submodules          |                          |
 | checkout-path                | path                |                          |
 | checkout-ref                 | ref                 |                          |
 | checkout-repository          | repository          | ${{ github.repository }} |
diff --git a/action.yml b/action.yml
index 3e720b9..2df4fef 100644
--- a/action.yml
+++ b/action.yml
@@ -12,6 +12,10 @@ inputs:
     description: 'Number of commits to fetch'
     required: false
 
+  checkout-submodules:
+    description: 'Whether to fetch submodules'
+    required: false
+
   checkout-path:
     description: 'Relative path under $GITHUB_WORKSPACE to place the repository'
     required: false
@@ -105,6 +109,7 @@ runs:
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         fetch-depth: '${{ inputs.checkout-fetch-depth }}'
+        submodules: '${{ inputs.checkout-submodules }}'
         path: '${{ inputs.checkout-path }}'
         persist-credentials: '${{ inputs.checkout-persist-credentials }}'
         ref: '${{ inputs.checkout-ref }}'