diff --git a/Dockerfile b/Dockerfile
index e881db3..d84a507 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -67,7 +67,8 @@ RUN \
 	| sort -u \
 	)" && \
  apk add --no-cache \
-	${RUNTIME_PACKAGES} && \
+	${RUNTIME_PACKAGES} \
+	ca-certificates && \
 
 # cleanup
  apk del --purge \
diff --git a/README.md b/README.md
index 27c7a5d..daf4dc9 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,7 @@ To log in to the application, browse to https://<hostip>:6501.
 
 ## Versions
 
++ **07.01.17:** Add ca-certificates package, resolve sasl issues.
 + **07.12.16:** Use scanelf to determine runtime dependencies.
 fix error with `\` instead of `&&\`.