diff --git a/test/etc/run-test-jar b/test/etc/run-test-jar
index 50d5fee..7453823 100755
--- a/test/etc/run-test-jar
+++ b/test/etc/run-test-jar
@@ -761,8 +761,8 @@
   if [ "$DEV_MODE" = "y" ]; then
     zip_options=""
   fi
-  setupapex_cmdline="unzip -u ${zip_options} ${ZIPAPEX_LOC} apex_payload.zip -d ${DEX_LOCATION}"
-  installapex_cmdline="unzip -u ${zip_options} ${DEX_LOCATION}/apex_payload.zip -d ${DEX_LOCATION}/zipapex"
+  setupapex_cmdline="unzip -o -f -u ${zip_options} ${ZIPAPEX_LOC} apex_payload.zip -d ${DEX_LOCATION}"
+  installapex_cmdline="unzip -o -f -u ${zip_options} ${DEX_LOCATION}/apex_payload.zip -d ${DEX_LOCATION}/zipapex"
   BIN_DIR=$DEX_LOCATION/zipapex/bin
 fi