diff --git a/.github/workflows/test-cygwin.yml b/.github/workflows/test-cygwin.yml
index 6e2dc5b59..2dcdecd30 100644
--- a/.github/workflows/test-cygwin.yml
+++ b/.github/workflows/test-cygwin.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           platform: ${{ matrix.architecture }}
           packages: >
-            ImageMagick python3${{ matrix.python-minor-version }}-cffi
+            ImageMagick jpeg python3${{ matrix.python-minor-version }}-cffi
             python3${{ matrix.python-minor-version }}-devel
             python3${{ matrix.python-minor-version }}-numpy
             python3${{ matrix.python-minor-version }}-sip