diff --git a/.travis.yml b/.travis.yml
index 4f7df3c..e2acbf4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode10.2
+osx_image: xcode10.3
 addons:
   homebrew:
     packages:
diff --git a/gopenpgp_build.sh b/gopenpgp_build.sh
index 872762f..407c337 100755
--- a/gopenpgp_build.sh
+++ b/gopenpgp_build.sh
@@ -20,5 +20,5 @@ mkdir -p "$OUTPUT_PATH"
 
 chmod -R u+w "$GOPATH/pkg/mod"
 
-"$GOPATH/bin/gomobile" bind -target ios -o "${OUTPUT_PATH}/Crypto.framework" \
+"$GOPATH/bin/gomobile" bind -v -ldflags="-s -w" -target ios -o "${OUTPUT_PATH}/Crypto.framework" \
     "$PACKAGE_PATH"/{crypto,armor,constants,models,subtle}