diff --git a/Dockerfile b/Dockerfile
index 826bf92..6bed5bb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,8 +3,7 @@ FROM alpine:3.19
 RUN apk add --no-cache curl bash ca-certificates
 
 # Install kubectl
-RUN KUBECTL_VERSION=$(curl -s https://dl.k8s.io/release/stable.txt) && \
-    curl -LO https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl && \
+RUN curl -LO "https://dl.k8s.io/release/$(curl -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" && \
     install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl && \
     rm kubectl