diff --git a/README.md b/README.md
index 71c66a7..f35791e 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ This could, for example, be the name of the job, or the current week number to b
       - run: echo WEEK=$(date +%V) >>$GITHUB_ENV
         shell: bash
 
-      - uses: ./action
+      - uses: hynek/setup-cached-uv@v1
         with:
           cache-suffix: -tests-${{ env.WEEK }}
       # ...
@@ -61,9 +61,23 @@ Internally, the GitHub Actions function `hashFiles` is used to hash the passed p
 Using this with a fully pinned `requirements.txt` file is the most efficient use of this action because it automatically invalidates the cache.
 
 
+#### `if-use-cache`
+
+This defaults to `true`, but can be used to disable the cache, since GitHub's default caching speed is slower than uv in many cases.
+For example, if you have dependencies that don't provide prebuilt PyPy wheels, you can only cache that run like this:
+
+```yaml
+      # ...
+      - uses: hynek/setup-cached-uv@v1
+        with:
+          if-use-cache: ${{ startsWith(matrix.python-version, 'pypy') }}
+      # ...
+```
+
+
 ### Examples
 
-Check out [our CI](.github/workflows/ci.yml) to see both inputs in action.
+Check out [our CI](.github/workflows/ci.yml) to see some inputs in action.
 
 
 ## License
diff --git a/action.yml b/action.yml
index 3f8bdad..d6768d9 100644
--- a/action.yml
+++ b/action.yml
@@ -17,6 +17,11 @@ inputs:
     required: false
     default: ""
 
+  use-cache-if:
+    description: Save the cache.
+    required: false
+    default: true
+
 runs:
   using: composite
 
@@ -41,10 +46,11 @@ runs:
       "HASH_CACHE_SUFFIX=-${{ hashFiles(inputs.cache-dependency-path) }}"
       >>$GITHUB_ENV
     shell: bash
-    if: inputs.cache-dependency-path != ''
+    if: inputs.cache-dependency-path != '' && inputs.use-cache-if == 'true'
 
   - name: Load uv cache
     uses: actions/cache@v4
+    if: inputs.use-cache-if == 'true'
     with:
       path: ${{ env.UV_CACHE }}
       key: uv-${{ runner.os }}${{ inputs.cache-suffix }}${{ env.HASH_CACHE_SUFFIX }}