diff --git a/docker/alpine/Dockerfile b/docker/alpine/Dockerfile
index d558530a..1bf7cfee 100644
--- a/docker/alpine/Dockerfile
+++ b/docker/alpine/Dockerfile
@@ -25,7 +25,6 @@ RUN set -ex && \
                                 libev-dev \
                                 libtool \
                                 linux-headers \
-                                udns-dev \
                                 libsodium-dev \
                                 mbedtls-dev \
                                 pcre-dev \