diff --git a/.github/workflows/python-test.yml b/.github/workflows/python-test.yml
index 823a917..15fa7ff 100644
--- a/.github/workflows/python-test.yml
+++ b/.github/workflows/python-test.yml
@@ -20,29 +20,28 @@ jobs:
 
     env:
       TEST_DATA_FOLDER: ${{ github.workspace }}/test_data
-      FTP_MAIN: ftp.bas.ac.uk
-      FTP_PARTIAL_PATH: rapidkrill/ek60/
 
     steps:
     - name: Checkout Repository
       uses: actions/checkout@v2
+      with:
+        lfs: true  # This ensures that LFS files are checked out
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
 
+    - name: Cache test data
+      uses: actions/cache@v3
+      with:
+        path: ${{ env.TEST_DATA_FOLDER }}
+        key: test-data-${{ runner.os }}-${{ hashFiles('test_data/*.raw') }}
+
     - name: Install Dependencies
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements-dev.txt
 
-    - name: Download FTP Data with wget
-      run: |
-        mkdir -p ${{ env.TEST_DATA_FOLDER }}
-        wget -P ${{ env.TEST_DATA_FOLDER }} ftp://${{ env.FTP_MAIN }}/${{ env.FTP_PARTIAL_PATH }}JR161-D20061118-T010645.raw
-        wget -P ${{ env.TEST_DATA_FOLDER }} ftp://${{ env.FTP_MAIN }}/${{ env.FTP_PARTIAL_PATH }}JR179-D20080410-T150637.raw
-        wget -P ${{ env.TEST_DATA_FOLDER }} ftp://${{ env.FTP_MAIN }}/${{ env.FTP_PARTIAL_PATH }}JR230-D20091215-T121917.raw
-
     - name: Run Tests
       run: pytest -m "not ignore"