Dockerfile in concourse-resource-rubygems-0.3.3 vs Dockerfile in concourse-resource-rubygems-0.3.4

@@ -1,6 +1,8 @@
 FROM gems/concourse-fuselage
 
-RUN apk-install ca-certificates \
+RUN apk-install ca-certificates openssl-dev \
+    && update-ca-certificates \
+    && apk del openssl-dev \
     && gem-install concourse-resource-rubygems
 
 RUN find $(gem environment gemdirs) -type f -path '*/concourse-resource-rubygems-*/bin/*' -exec ln -s '{}' \;