diff --git a/.github/stale.yml b/.github/stale.yml
deleted file mode 100644
index 30a0b0b..0000000
--- a/.github/stale.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-# Number of days of inactivity before an issue becomes stale
-daysUntilStale: 30
-# Number of days of inactivity before a stale issue is closed
-daysUntilClose: 5
-# Issues with these labels will never be considered stale
-exemptLabels:
-  - pinned
-  - security
-# Label to use when marking an issue as stale
-staleLabel: stale
-# Comment to post when marking an issue as stale. Set to `false` to disable
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs. Thank you
-  for your contributions.
-# Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index b702875..390db95 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 FROM library/tomcat:9-jre11
 
 ENV ARCH=amd64 \
-  GUAC_VER=1.3.0 \
+  GUAC_VER=1.4.0 \
   GUACAMOLE_HOME=/app/guacamole \
-  PG_MAJOR=9.6 \
+  PG_MAJOR=13 \
   PGDATA=/config/postgres \
   POSTGRES_USER=guacamole \
   POSTGRES_DB=guacamole_db
@@ -27,13 +27,13 @@ RUN apt-get update && apt-get install -y \
     libswscale-dev freerdp2-dev libfreerdp-client2-2 libpango1.0-dev \
     libssh2-1-dev libtelnet-dev libvncserver-dev \
     libpulse-dev libssl-dev libvorbis-dev libwebp-dev libwebsockets-dev \
-    ghostscript postgresql-${PG_MAJOR} \
+    ghostscript build-essential postgresql-${PG_MAJOR} \
   && rm -rf /var/lib/apt/lists/*
 
 # Link FreeRDP to where guac expects it to be
 RUN [ "$ARCH" = "armhf" ] && ln -s /usr/local/lib/freerdp /usr/lib/arm-linux-gnueabihf/freerdp || exit 0
 RUN [ "$ARCH" = "amd64" ] && ln -s /usr/local/lib/freerdp /usr/lib/x86_64-linux-gnu/freerdp || exit 0
-
+RUN echo $PATH
 # Install guacamole-server
 RUN curl -SLO "http://apache.org/dyn/closer.cgi?action=download&filename=guacamole/${GUAC_VER}/source/guacamole-server-${GUAC_VER}.tar.gz" \
   && tar -xzf guacamole-server-${GUAC_VER}.tar.gz \
@@ -49,7 +49,7 @@ RUN curl -SLO "http://apache.org/dyn/closer.cgi?action=download&filename=guacamo
 RUN set -x \
   && rm -rf ${CATALINA_HOME}/webapps/ROOT \
   && curl -SLo ${CATALINA_HOME}/webapps/ROOT.war "http://apache.org/dyn/closer.cgi?action=download&filename=guacamole/${GUAC_VER}/binary/guacamole-${GUAC_VER}.war" \
-  && curl -SLo ${GUACAMOLE_HOME}/lib/postgresql-42.1.4.jar "https://jdbc.postgresql.org/download/postgresql-42.1.4.jar" \
+  && curl -SLo ${GUACAMOLE_HOME}/lib/postgresql-42.1.4.jar "https://jdbc.postgresql.org/download/postgresql-42.2.24.jar" \
   && curl -SLO "http://apache.org/dyn/closer.cgi?action=download&filename=guacamole/${GUAC_VER}/binary/guacamole-auth-jdbc-${GUAC_VER}.tar.gz" \
   && tar -xzf guacamole-auth-jdbc-${GUAC_VER}.tar.gz \
   && cp -R guacamole-auth-jdbc-${GUAC_VER}/postgresql/guacamole-auth-jdbc-postgresql-${GUAC_VER}.jar ${GUACAMOLE_HOME}/extensions/ \
@@ -60,8 +60,8 @@ RUN set -x \
 RUN set -xe \
   && mkdir ${GUACAMOLE_HOME}/extensions-available \
   && for i in auth-ldap auth-duo auth-header auth-cas auth-openid auth-quickconnect auth-totp; do \
-    echo "http://apache.org/dyn/closer.cgi?action=download&filename=guacamole/${GUAC_VER}/binary/guacamole-${i}-${GUAC_VER}.tar.gz" \
-    && curl -SLO "http://apache.org/dyn/closer.cgi?action=download&filename=guacamole/${GUAC_VER}/binary/guacamole-${i}-${GUAC_VER}.tar.gz" \
+    echo "https://dlcdn.apache.org/guacamole/${GUAC_VER}/binary/guacamole-${i}-${GUAC_VER}.tar.gz" \
+    && curl -SLO "https://dlcdn.apache.org/guacamole/${GUAC_VER}/binary/guacamole-${i}-${GUAC_VER}.tar.gz" \
     && tar -xzf guacamole-${i}-${GUAC_VER}.tar.gz \
     && cp guacamole-${i}-${GUAC_VER}/guacamole-${i}-${GUAC_VER}.jar ${GUACAMOLE_HOME}/extensions-available/ \
     && rm -rf guacamole-${i}-${GUAC_VER} guacamole-${i}-${GUAC_VER}.tar.gz \