1 files changed, 2 insertions, 1 deletions

diff --git a/docker/Dockerfile b/docker/Dockerfile

index 9791d3ddf0..791cd6936b 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -36,7 +36,8 @@ RUN pip install --prefix="/install" --no-warn-script-location \
         frozendict \
         jaeger-client \
         opentracing \
-        prometheus-client \
+        # Match the version constraints of Synapse
+        "prometheus_client>=0.4.0,<0.9.0" \
         psycopg2 \
         pycparser \
         pyrsistent \