diff --git a/images/test-runner/rootfs/Dockerfile b/images/test-runner/rootfs/Dockerfile
index 1018c0c80..e58cf47ad 100644
--- a/images/test-runner/rootfs/Dockerfile
+++ b/images/test-runner/rootfs/Dockerfile
@@ -37,7 +37,7 @@ RUN apk add --no-cache \
   git \
   musl-dev \
   perl \
-  python \
+  python3 \
   py-crcmod \
   py-pip \
   unzip \