diff --git a/parachain/Dockerfile b/parachain/Dockerfile
index f2e5dff..a5c433a 100644
--- a/parachain/Dockerfile
+++ b/parachain/Dockerfile
@@ -16,6 +16,9 @@ RUN curl https://sh.rustup.rs -sSf | sh -s -- -y && \
 	export PATH="$PATH:$HOME/.cargo/bin" && \
 	rustup toolchain install nightly && \
 	rustup target add wasm32-unknown-unknown --toolchain nightly && \
-	rustup default stable 
+	rustup default stable
+
+# install netcat for healthcheck
+RUN apt-get update && apt-get install -yq netcat && cp /usr/bin/nc /usr/local/bin/
 
 RUN echo "PATH=\"$PATH:/root/.cargo/bin\"" >> /etc/environment
diff --git a/worker/Dockerfile b/worker/Dockerfile
index 55ec6a6..f17b7ee 100644
--- a/worker/Dockerfile
+++ b/worker/Dockerfile
@@ -75,6 +75,9 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/* && \
     rm -rf /var/cache/apt/archives/*
 
+# install netcat for healthcheck
+RUN apt-get update && apt-get install -yq netcat && cp /usr/bin/nc /usr/local/bin/
+
 # set environment variables
 ENV DEBIAN_FRONTEND noninteractive
 ENV TERM xterm