diff --git a/scripts/test-restore-apt b/scripts/test-restore-apt
index 6545a0e..dd9f408 100755
--- a/scripts/test-restore-apt
+++ b/scripts/test-restore-apt
@@ -5,6 +5,7 @@ set -o errexit
 set -o nounset
 
 apt-get update -qq
+apt-get upgrade -qqy
 apt-get install -qqy libssl-dev
 
 ./install-php-extensions zip