diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9e65dc2..c68079c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,6 +47,14 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y mtools dosfstools exfatprogs ntfs-3g e2fsprogs imagemagick zip
+      - name: Cache das imagens de referência
+        uses: actions/cache@v6
+        with:
+          path: target/testdata
+          key: testdata-${{ runner.os }}-${{ hashFiles('scripts/fetch-testdata.sh') }}
+      - name: Imagens de referência (BitLocker, FileVault 2, dfvfs, AFF4)
+        shell: bash
+        run: scripts/fetch-testdata.sh
       - name: Testes (com imagens reais FAT32/NTFS/ext4 no Linux)
         shell: bash
         run: |