diff --git a/ci/build/Dockerfile b/ci/build/Dockerfile
index 56df6e1..fc18696 100644
--- a/ci/build/Dockerfile
+++ b/ci/build/Dockerfile
@@ -40,6 +40,7 @@ RUN apt-get update && \
         jq \
         ca-certificates \
         python3 \
+        virtualenv \
         wget \
         curl \
         openssl \