diff --git a/.github/workflows/node-small.js.yml b/.github/workflows/node-small.js.yml
index e08c3be..82e42be 100644
--- a/.github/workflows/node-small.js.yml
+++ b/.github/workflows/node-small.js.yml
@@ -37,6 +37,7 @@ jobs:
     - run: npm install -g yarn
     - run: npm install
     - run: npm test
+    - run: pip install -r requirements.txt
     
     - name: Build all fonts
       run: ./run_all.py --small_data
diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index f31db28..e4ba65d 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -37,6 +37,7 @@ jobs:
     - run: npm install -g yarn
     - run: yarn install
     - run: npm test
+    - run: pip install -r requirements.txt
     
     - name: Build all fonts
       run: ./run_all.py
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e71759f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+fonttools==4.54.1