diff --git a/GNUmakefile b/GNUmakefile
index 6d14edd1..096e74d5 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -985,7 +985,7 @@ out/TildeFriends.aab: out/apk/classes.dex $(filter-out %debug%, $(ANDROID_TARGET
 	@cp -r deps/codemirror/ out/aab/staging/root/deps/
 	@cd out/aab/staging/; zip -r ../base.zip *; cd ../../../
 	@java -jar $(BUNDLETOOL) build-bundle --overwrite --config=src/android/BundleConfig.json --modules=out/aab/base.zip --output=$@
-	@jarsigner -keystore .keys/android.jks $@ androidKey -storepass android
+	@$(ANDROID_BUILD_TOOLS)/apksigner sign -ks .keys/android.jks --ks-key-alias androidKey -ks-pass pass:android --min-sdk-version=$(ANDROID_MIN_SDK_VERSION) $@
 
 aab: out/TildeFriends.aab ## Build an Android App Bundle.
 .PHONY: aab