diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0603e2de..bf0dc83b 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -53,9 +53,11 @@ COPY --from=testca /home/step/certs/root_ca.crt /etc/ssl/certs/NginxProxyManager
 # Remove frontend service not required for prod, dev nginx config as well
 RUN rm -rf /etc/s6-overlay/s6-rc.d/user/contents.d/frontend /etc/nginx/conf.d/dev.conf \
 	&& chmod 644 /etc/logrotate.d/nginx-proxy-manager
+COPY start-container /usr/local/bin/start-container
+RUN chmod +x /usr/local/bin/start-container
 
 VOLUME [ "/data" ]
-ENTRYPOINT [ "/init" ]
+ENTRYPOINT [ "start-container" ]
 
 LABEL org.label-schema.schema-version="1.0" \
 	org.label-schema.license="MIT" \
diff --git a/docker/dev/Dockerfile b/docker/dev/Dockerfile
index bb4ac6d4..479cb4ff 100644
--- a/docker/dev/Dockerfile
+++ b/docker/dev/Dockerfile
@@ -35,5 +35,8 @@ RUN rm -f /etc/nginx/conf.d/production.conf \
 COPY --from=pebbleca /test/certs/pebble.minica.pem /etc/ssl/certs/pebble.minica.pem
 COPY --from=testca /home/step/certs/root_ca.crt /etc/ssl/certs/NginxProxyManager.crt
 
+COPY start-container /usr/local/bin/start-container
+RUN chmod +x /usr/local/bin/start-container
+
 EXPOSE 80 81 443
-ENTRYPOINT [ "/init" ]
+ENTRYPOINT [ "start-container" ]
diff --git a/docker/rootfs/etc/nginx/conf.d/include/ssl-ciphers.conf b/docker/rootfs/etc/nginx/conf.d/include/ssl-ciphers.conf
index ba87229e..52dbd8b8 100644
--- a/docker/rootfs/etc/nginx/conf.d/include/ssl-ciphers.conf
+++ b/docker/rootfs/etc/nginx/conf.d/include/ssl-ciphers.conf
@@ -6,3 +6,4 @@ ssl_protocols TLSv1.2 TLSv1.3;
 ssl_ciphers "ALL:RC4-SHA:AES128-SHA:AES256-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:AES256-GCM-SHA384:AES128-GCM-SHA256:RSA-AES256-CBC-SHA:RC4-MD5:DES-CBC3-SHA:AES256-SHA:RC4-SHA:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384";
 ssl_prefer_server_ciphers off;
 ssl_ecdh_curve X25519:prime256v1:secp384r1;
+ssl_dhparam /etc/ssl/certs/dhparam.pem;
\ No newline at end of file
diff --git a/docker/start-container b/docker/start-container
new file mode 100644
index 00000000..859575a2
--- /dev/null
+++ b/docker/start-container
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+FILE="/etc/ssl/certs/dhparam.pem"
+
+if [ ! -f "$FILE" ]; then
+    echo "the $FILE does not exist, creating..."
+    openssl dhparam -out "$FILE" 2048
+else
+    echo "the $FILE already exists, skipping..."
+fi
+
+echo "run default script"
+exec /init
\ No newline at end of file