diff --git a/Dockerfile b/Dockerfile
index 64accf5..d9e1275 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -112,6 +112,7 @@ RUN \
 	certbot-dns-rfc2136 \
 	certbot-dns-route53 \
 	certbot-dns-transip \
+	certbot-dns-netcup \
 	certbot-plugin-gandi \
 	cryptography \
 	requests && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index bf47a0e..f46a3f9 100755
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -112,6 +112,7 @@ RUN \
 	certbot-dns-rfc2136 \
 	certbot-dns-route53 \
 	certbot-dns-transip \
+	certbot-dns-netcup \
 	certbot-plugin-gandi \
 	cryptography \
 	requests && \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index cc2bec8..46e43b9 100755
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -112,6 +112,7 @@ RUN \
 	certbot-dns-rfc2136 \
 	certbot-dns-route53 \
 	certbot-dns-transip \
+	certbot-dns-netcup \
 	certbot-plugin-gandi \
 	cryptography \
 	requests && \