diff --git a/make.sh b/make.sh
index 19e2233..436b888 100755
--- a/make.sh
+++ b/make.sh
@@ -529,6 +529,8 @@ for target in "${targets[@]}"; do
     ${CCJS_PATH} \
       "${compression_options[@]}" \
       --warning_level VERBOSE \
+      --language_out ECMASCRIPT_2017 \
+      --output_wrapper "var a;a||(a=!0,(()=>{%output%})());" \
       "${source_map_options[@]}" \
       "${js_code[@]}" \
     > "${absolute_entry%.*}.cjs"
diff --git a/out/PiPer-chrome.zip b/out/PiPer-chrome.zip
index 0c7a74c..a69271f 100644
Binary files a/out/PiPer-chrome.zip and b/out/PiPer-chrome.zip differ
diff --git a/out/PiPer-safari-legacy.safariextz b/out/PiPer-safari-legacy.safariextz
index c2aaa67..08658f0 100644
Binary files a/out/PiPer-safari-legacy.safariextz and b/out/PiPer-safari-legacy.safariextz differ
diff --git a/out/PiPer-safari.pkg b/out/PiPer-safari.pkg
index 9169e24..e0faff4 100644
Binary files a/out/PiPer-safari.pkg and b/out/PiPer-safari.pkg differ
diff --git a/src/safari-legacy/update.plist b/src/safari-legacy/update.plist
index eba3d9c..37a8148 100644
--- a/src/safari-legacy/update.plist
+++ b/src/safari-legacy/update.plist
@@ -10,7 +10,7 @@
 			<key>CFBundleShortVersionString</key>
 			<string>1.0.3</string>
 			<key>CFBundleVersion</key>
-			<string>219</string>
+			<string>221</string>
 			<key>Developer Identifier</key>
 			<string>BQ6Q24MF9X</string>
 			<key>URL</key>