diff --git a/package/Dockerfile b/package/Dockerfile
index 11b52ec..6ed7e57 100644
--- a/package/Dockerfile
+++ b/package/Dockerfile
@@ -41,9 +41,6 @@ RUN apt-get update && \
     mv /usr/sbin/traceroute /usr/bin/traceroute && \
     curl -sLf https://get.docker.com/builds/Linux/x86_64/docker-1.10.3 > /usr/bin/docker && \
     chmod +x /usr/bin/docker && \
-    curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.9.11/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.9 && \
-    curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.10.13/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.10 && \
-    curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.11.9/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.11 && \
     curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.12.7/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.12 && \
     curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.13.5/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.13 && \
     curl -sLf https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectl > /usr/local/bin/kubectl-1.14 && \