diff --git a/test/cypress/Dockerfile b/test/cypress/Dockerfile
index 6de4c24..c0bc0ba 100644
--- a/test/cypress/Dockerfile
+++ b/test/cypress/Dockerfile
@@ -6,6 +6,18 @@ COPY --chown=1000 ./test /test
 ENV FORCE_COLOR=0
 ENV NO_COLOR=1
 
+# testssl.sh and mkcert
+RUN wget "https://github.com/testssl/testssl.sh/archive/refs/tags/v3.2rc4.tar.gz" -O /tmp/testssl.tgz -q \
+	&& tar -xzf /tmp/testssl.tgz -C /tmp \
+	&& mv /tmp/testssl.sh-3.2rc4 /testssl \
+	&& rm /tmp/testssl.tgz \
+	&& apt-get update \
+	&& apt-get install -y bsdmainutils \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/* \
+	&& wget "https://github.com/FiloSottile/mkcert/releases/download/v1.4.4/mkcert-v1.4.4-linux-amd64" -O /bin/mkcert \
+	&& chmod +x /bin/mkcert
+
 WORKDIR /test
 RUN yarn install && yarn cache clean
 ENTRYPOINT []