diff --git a/konnect/Dockerfile b/konnect/Dockerfile
index b34dd06..ca0a141 100644
--- a/konnect/Dockerfile
+++ b/konnect/Dockerfile
@@ -1,4 +1,4 @@
-ARG CODE_VERSION=0.23.5
+ARG CODE_VERSION=0.24.0
 FROM kopano/konnectd:${CODE_VERSION}
 
 ARG VCS_REF
diff --git a/kwmserver/Dockerfile b/kwmserver/Dockerfile
index 17280b9..fe59f70 100644
--- a/kwmserver/Dockerfile
+++ b/kwmserver/Dockerfile
@@ -1,4 +1,4 @@
-ARG CODE_VERSION=0.15.3
+ARG CODE_VERSION=0.16.0
 FROM kopano/kwmserverd:${CODE_VERSION}
 
 ARG VCS_REF
diff --git a/web/kweb.cfg b/web/kweb.cfg
index f3e9a49..9b6c47b 100644
--- a/web/kweb.cfg
+++ b/web/kweb.cfg
@@ -9,6 +9,9 @@
     gzip
     header / Server kweb
 
+    # TODO this should actually not be neccesary since the container has the mailcap package installed
+    mime .json application/json
+
     tls {%EMAIL%}
 
     limits {