diff --git a/Dockerfile b/Dockerfile
index 47aa4a5..cf3a12d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 # Update and install packages
 RUN apt-get update && apt-get install -y \
     bind9-utils \
+    bind9-dnsutils \
     curl \
     git \
     krb5-user \