diff --git a/build-php.jenkins b/build-php.jenkins
index e07b0ac..7c80050 100644
--- a/build-php.jenkins
+++ b/build-php.jenkins
@@ -39,6 +39,7 @@ RUN apt-get update && \\
     apt-get upgrade -y && \\
     apt-get autoremove -y && \\
     apt-get clean && \\
+    update-ca-certificates && \\
     rm -rf /tmp/* /var/lib/apt/lists/* /var/tmp/* && \\
     docker-php-ext-install mysqli
 """