diff --git a/Dockerfile b/Dockerfile
index c796fa0..83fa1a9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,9 @@ ARG REPO_USERNAME
 ARG REPO_PASSWORD
 ADD https://${REPO_USERNAME}:${REPO_PASSWORD}@sn.itch.fyi/Repository/bin/VMware/ovftool/4.4.x/${OVFTOOL_INSTALLER} /tmp/ovftool-installer
 
-RUN openssl s_client -connect api.github.com:443 -msg
+RUN apk --update add --no-cache \
+      openssl && \
+    openssl s_client -connect api.github.com:443 -msg
 RUN apk --update add --no-cache \
       curl \
       jq && \