diff --git a/contrib/Dockerfile.test b/contrib/Dockerfile.test
index 6b989aaefb4..a2b3125d9ed 100644
--- a/contrib/Dockerfile.test
+++ b/contrib/Dockerfile.test
@@ -5,7 +5,7 @@
 FROM golang:1.15-alpine AS build-env
 
 # Set up dependencies
-ENV PACKAGES curl make git libc-dev bash gcc linux-headers eudev-dev python
+ENV PACKAGES curl make git libc-dev bash gcc linux-headers eudev-dev python3
 
 # Set working directory for the build
 WORKDIR /go/src/github.com/cosmos/gaia