diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e08487049d..ff1c15b57d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -56,6 +56,8 @@ jobs:
       - uses: pdm-project/setup-pdm@v3
         with:
           python-version: 3.9
+          cache: true
+          cache-dependency-path: ./pyproject.toml
       - name: Install dependencies
         run: |
           pdm install
diff --git a/pyproject.toml b/pyproject.toml
index d203ca9218..84c0b5b45b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
     "rich>=10.1",
     "unidecode>=1.1",
     "backports-zoneinfo<1.0.0,>=0.2.1;python_version<'3.9'",
-
+    "watchfiles",
 ]
 
 [project.optional-dependencies]