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-rw-r--r--docker/Dockerfile-workers3
1 files changed, 2 insertions, 1 deletions
diff --git a/docker/Dockerfile-workers b/docker/Dockerfile-workers
index 24b03585f9..83db0a95b9 100644
--- a/docker/Dockerfile-workers
+++ b/docker/Dockerfile-workers
@@ -1,5 +1,6 @@
 # Inherit from the official Synapse docker image
-FROM matrixdotorg/synapse
+ARG SYNAPSE_VERSION=latest
+FROM matrixdotorg/synapse:$SYNAPSE_VERSION
 
 # Install deps
 RUN \