diff --git a/scripts/install-for-ci.sh b/scripts/install-for-ci.sh
index a9c8223..f6557b7 100644
--- a/scripts/install-for-ci.sh
+++ b/scripts/install-for-ci.sh
@@ -113,11 +113,9 @@ fi
 install_roswell_bin () {
     if uname -s | grep -e MSYS_NT >/dev/null; then
         if [ $ROSWELL_BRANCH = release ]; then
-            curl -L https://github.com/roswell/roswell/releases/download/v$ROSWELL_RELEASE_VERSION/roswell_$(ROSWELL_RELEASE_VERSION)_amd64.zip \
-                --output /tmp/roswell.zip
+            fetch "https://github.com/roswell/roswell/releases/download/v$ROSWELL_RELEASE_VERSION/roswell_${ROSWELL_RELEASE_VERSION}_amd64.zip" /tmp/roswell.zip
         else
-            curl -L "https://ci.appveyor.com/api/projects/snmsts/roswell-en89n/artifacts/Roswell-x86_64.zip?branch=master&job=Environment%3A%20MSYS2_ARCH%3Dx86_64,%20MSYS2_BITS%3D64,%20MSYSTEM%3DMINGW64,%20METHOD%3Dcross" \
-                --output /tmp/roswell.zip
+            fetch "https://ci.appveyor.com/api/projects/snmsts/roswell-en89n/artifacts/Roswell-x86_64.zip?branch=master&job=Environment%3A%20MSYS2_ARCH%3Dx86_64,%20MSYS2_BITS%3D64,%20MSYSTEM%3DMINGW64,%20METHOD%3Dcross" /tmp/roswell.zip
         fi
         unzip /tmp/roswell.zip -d /tmp/ >/dev/null
         mkdir -p $ROSWELL_INSTALL_DIR/bin