diff --git a/pre_build_hook b/pre_build_hook
index 87b59ca..674b1a7 100755
--- a/pre_build_hook
+++ b/pre_build_hook
@@ -29,7 +29,7 @@ function download {
     done
 }
 
-PHP5_VERSION="5.5.9+dfsg-1ubuntu4.19"
+PHP5_VERSION="5.5.9+dfsg-1ubuntu4.20"
 ZBX_VERSION="2.4.8-1+trusty"
 
 download deb http://repo.zabbix.com/zabbix/2.4/ubuntu/pool/main/z/zabbix/zabbix-agent_${ZBX_VERSION}_amd64.deb \