diff --git a/Dockerfile b/Dockerfile
index 6099f16..0dafaee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,6 @@ FROM alerta/alerta-web:8.3.3
 
 RUN /venv/bin/pip install dnspython==2.1.0
 
-RUN /venv/bin/pip install "git+https://github.com/alerta/alerta-contrib.git@bc6cd14ea51c857cfdc326b381860eacfc450162#subdirectory=integrations/mailer"
+RUN /venv/bin/pip install "git+https://github.com/alerta/alerta-contrib.git@856a900528711eca05ccc3586ffd1106e4d091e3#subdirectory=integrations/mailer"
 
-RUN /venv/bin/pip install "git+https://github.com/alerta/alerta-contrib.git#subdirectory=plugins/rocketchat"
+RUN /venv/bin/pip install "git+https://github.com/alerta/alerta-contrib.git@856a900528711eca05ccc3586ffd1106e4d091e3#subdirectory=plugins/rocketchat"