diff --git a/agent/ubuntu/Dockerfile b/agent/ubuntu/Dockerfile
index ed0e5fcaf..419071dfc 100644
--- a/agent/ubuntu/Dockerfile
+++ b/agent/ubuntu/Dockerfile
@@ -95,6 +95,7 @@ RUN apt-get ${APT_FLAGS_COMMON} update && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
     apt-get ${APT_FLAGS_COMMON} update && \
     apt-get ${APT_FLAGS_PERSISTENT} install \
+            libssl1.1 \
             libldap-2.4 && \
     apt-get ${APT_FLAGS_COMMON} autoremove && \
     apt-get ${APT_FLAGS_COMMON} clean && \