diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 09e8be2..2c3ee13 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@ build:
                   - generated-version.txt
         script:
                 - apt update
-                - apt install -y gcc g++ libssl-dev uuid-dev xsltproc docbook docbook-xsl libmariadbclient-dev
+                - apt install -y gcc g++ libssl-dev uuid-dev xsltproc docbook docbook-xsl libmariadbclient-dev libwebsockets-dev
                 - MOSQ_SRC=`pwd`/parts/mosquitto
                 - BUILD_DIR=`pwd`
                 - pushd parts/mosquitto 
diff --git a/Dockerfile b/Dockerfile
index a97f282..d1d67ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,7 @@ LABEL ImageName="registry.gitlab.com/wolutator/mosquitto-with-auth"
 
 RUN \
   apt update && \
-  apt install -y mariadb-client && \
-  apt install -y openssl 
+  apt install -y mariadb-client openssl libwebsockets8 && \
 
 COPY opt/ /opt
 COPY etc/ /opt/etc