diff --git a/msmtp/Dockerfile b/msmtp/Dockerfile
index ebd657b..093ae75 100644
--- a/msmtp/Dockerfile
+++ b/msmtp/Dockerfile
@@ -3,7 +3,7 @@ FROM alpine:${ALPINE_VERSION}
 RUN mkdir -p /var/msmtp
 WORKDIR /var/msmtp
 ARG VERSION
-RUN apk --no-cache add git autoconf automake build-base gettext gettext-dev gnutls-dev libtool make texinfo \
+RUN apk --no-cache add git autoconf automake build-base gettext gettext-dev gnutls gnutls-dev libtool make texinfo \
   && git clone https://github.com/marlam/msmtp.git --branch msmtp-${VERSION} --single-branch --depth 1 msmtp \
   && cd msmtp \
   && autoreconf -fi \