diff --git a/CMakeLists.txt b/CMakeLists.txt
index f913022..17efca8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ include(ECMAddTests)
 set(MAILCOMMON_LIB_VERSION "5.2.40")
 set(KF5_VERSION "5.19.0")
 set(KDEPIMLIBS_LIB_VERSION "5.2.40")
-set(MESSAGELIB_LIB_VERSION "5.2.41")
+set(MESSAGELIB_LIB_VERSION "5.2.46")
 set(QT_REQUIRED_VERSION "5.4.0")
 set(KMIME_LIB_VERSION "5.2.40")
 set(KMAILTRANSPORT_LIB_VERSION "5.2.40")
diff --git a/src/filter/mdnadvicedialog.cpp b/src/filter/mdnadvicedialog.cpp
index 1efa78e..5a353fd 100644
--- a/src/filter/mdnadvicedialog.cpp
+++ b/src/filter/mdnadvicedialog.cpp
@@ -228,7 +228,7 @@ QPair< bool, KMime::MDN::SendingMode > MDNAdviceHelper::checkAndSetMDNInfo(
     }
 
     // RFC 2298: An MDN MUST NOT be generated in response to an MDN.
-    if (MessageViewer::ObjectTreeParser::findType(msg.data(),
+    if (MimeTreeParser::ObjectTreeParser::findType(msg.data(),
             "message",
             "disposition-notification",
             true, true)) {