diff --git a/conf/app.src b/conf/app.src
index 7d301dd..0eb1f74 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/vector-im/element-web/releases/download/v1.11.22/element-v1.11.22.tar.gz
-SOURCE_SUM=026746e75d84854d1729baee6c8c70826be5e59f85917f9055b24be1027fae00
+SOURCE_URL=https://github.com/vector-im/element-web/releases/download/v1.11.23/element-v1.11.23.tar.gz
+SOURCE_SUM=d8b6e81531e975e9f581fd582f679b1052b432336fd5e4ffb702502e71d0a24d
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/conf/nginx.conf b/conf/nginx.conf
index b5f38e3..e5891cf 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -5,6 +5,8 @@ location __PATH__/ {
     
     index index.html;
     
+    more_set_headers "Content-Security-Policy: frame-ancestors 'self'";
+    
     # Include SSOWAT user panel.
     include conf.d/yunohost_panel.conf.inc;
 }