diff --git a/bbb-install.sh b/bbb-install.sh
index 1579557..1d84dac 100755
--- a/bbb-install.sh
+++ b/bbb-install.sh
@@ -288,7 +288,7 @@ main() {
 
     #need_ppa libreoffice-ubuntu-ppa-focal.list       ppa:libreoffice/ppa        1378B444 # Latest version of libreoffice
     need_ppa bigbluebutton-ubuntu-support-focal.list ppa:bigbluebutton/support  2E1B01D0E95B94BC    # Needed for libopusenc0
-    need_ppa martin-uni-mainz-ubuntu-coturn-focal.list ppa:martin-uni-mainz/coturn  5D3BBDB3 # Coturn
+    need_ppa martin-uni-mainz-ubuntu-coturn-focal.list ppa:martin-uni-mainz/coturn  4B77C2225D3BBDB3 # Coturn
 
     if ! apt-key list 5AFA7A83 | grep -q -E "1024|4096"; then   # Add Kurento package
       sudo apt-key adv --keyserver https://keyserver.ubuntu.com --recv-keys 5AFA7A83