diff --git a/install b/install
index 7e94432..ed8fe35 100755
--- a/install
+++ b/install
@@ -7,10 +7,10 @@
 # Copyright (c) 2019 - WordOps
 # This script is licensed under M.I.T
 # -------------------------------------------------------------------------
-# Version 3.9.5 - 2019-05-02
+# Version 3.9.5 - 2019-05-10
 # -------------------------------------------------------------------------
 readonly wo_version_old="2.2.3"
-readonly wo_version_new="3.9.5"
+readonly wo_version_new="3.9.5.1"
 # CONTENTS
 # ---
 # 1. VARIABLES AND DECLARATIONS
@@ -169,17 +169,25 @@ fi
 wo_install_dep() {
 
     {
+
+        [ -z "$wo_travis" ] && {
+            # update server packages
+            DEBIAN_FRONTEND=noninteractive apt-get -o Dpkg::Options::="--force-confmiss" -o Dpkg::Options::="--force-confold" -y dist-upgrade
+        } > /dev/null 2>&1
         if [ "$wo_linux_distro" == "Ubuntu" ]; then
+            # add nginx repository gpg key
             wget https://download.opensuse.org/repositories/home:virtubox:WordOps/xUbuntu_"$wo_distro_id"/Release.key -O Release.key
             apt-key add - < Release.key
             rm -f Release.key
+            # install dependencies
             DEBIAN_FRONTEND=noninteractive apt-get -o Dpkg::Options::="--force-confmiss" -o Dpkg::Options::="--force-confold" -y install build-essential curl gzip python3 python3-apt python3-setuptools python3-dev sqlite3 git tar software-properties-common pigz gnupg2 cron ccze rsync tree haveged ufw > /dev/null 2>&1
         else
+            # add nginx repository gpg ke
             wget https://download.opensuse.org/repositories/home:virtubox:WordOps/Debian_9.0/Release.key -O Release.key
             apt-key add - < Release.key
             rm -f Release.key
             [ -d /etc/apt/trusted.gpg.d ] && { wget -qO /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg; }
-
+            # install dependencies
             DEBIAN_FRONTEND=noninteractive apt-get -o Dpkg::Options::="--force-confmiss" -o Dpkg::Options::="--force-confold" -y install build-essential curl gzip dirmngr sudo python3 python3-apt python3-setuptools python3-dev ca-certificates sqlite3 git tar software-properties-common pigz apt-transport-https gnupg2 cron ccze rsync tree haveged ufw > /dev/null 2>&1
         fi
 
@@ -688,7 +696,7 @@ if [ -x /usr/local/bin/wo ]; then
             else
                 wo_install | tee -ai $wo_install_log
             fi
-            if [ -x "$(command -v nginx)" ]; then
+            if [ -n "$(command -v nginx)" ]; then
                 wo_lib_echo "Upgrading Nginx" | tee -ai $wo_install_log
                 wo_upgrade_nginx | tee -ai $wo_install_log
             fi
@@ -726,7 +734,7 @@ else
             else
                 wo_install | tee -ai $wo_install_log
             fi
-            if [ -x "$(command -v nginx)" ]; then
+            if [ -n "$(command -v nginx)" ]; then
                 wo_lib_echo "Upgrading Nginx" | tee -ai $wo_install_log
                 wo_upgrade_nginx | tee -ai $wo_install_log
             fi