diff --git a/docker-compose.yml b/docker-compose.yml
index dedc518..f18d693 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   builder:
-    image: floryn90/hugo:0.123.7
+    image: floryn90/hugo:0.134.2
     command: --logLevel info --baseURL="https://iscsc.fr" --buildFuture
     environment:
       - HUGO_DESTINATION=/build/blog
diff --git a/scripts/renewssl.sh b/scripts/renewssl.sh
new file mode 100755
index 0000000..ace8761
--- /dev/null
+++ b/scripts/renewssl.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/bash
+
+cd /opt/blog.iscsc.fr
+docker compose run --rm certbot renew
+docker compose stop blog
+docker compose up -d blog
diff --git a/src/themes/poison b/src/themes/poison
index aa9c3f4..8500bbb 160000
--- a/src/themes/poison
+++ b/src/themes/poison
@@ -1 +1 @@
-Subproject commit aa9c3f4360b52e3a3a01e74f7866391583042973
+Subproject commit 8500bbb9c5e82a921b97f1b1c2473a89f9a4346b