diff --git a/evolution.spec b/evolution.spec
index 23c9c35..b195533 100644
--- a/evolution.spec
+++ b/evolution.spec
@@ -42,12 +42,12 @@
 ### Abstract ###
 
 Name: evolution
-Version: 3.41.3
+Version: 3.42.0
 Release: 1%{?dist}
 Summary: Mail and calendar client for GNOME
 License: GPLv2+ and GFDL
 URL: https://wiki.gnome.org/Apps/Evolution
-Source: http://download.gnome.org/sources/%{name}/3.41/%{name}-%{version}.tar.xz
+Source: http://download.gnome.org/sources/%{name}/3.42/%{name}-%{version}.tar.xz
 Source1: flatpak-evolution-fix-service-names.sh
 Source2: flatpak-evolution-wrapper.sh.in
 
@@ -292,6 +292,9 @@ CFLAGS="$RPM_OPT_FLAGS -fPIC -DLDAP_DEPRECATED -Wno-sign-compare -Wno-deprecated
 	-DVERSION_SUBSTRING=" (%{version}-%{release})" \
 	%ldap_flags %ssl_flags %gtkdoc_flags %tests_flags %tnef_flags \
 	-DENABLE_PLUGINS=all \
+	%if 0%{?flatpak}
+	"-DWITH_WMCLASS_OVERRIDE=evolution.bin" \
+	%endif
 	%{nil}
 
 %cmake_build
@@ -563,6 +566,9 @@ grep -v "%{_datadir}/locale" evolution.lang > help.lang
 %endif
 
 %changelog
+* Fri Sep 17 2021 Milan Crha <mcrha@redhat.com> - 3.42.0-1
+- Update to 3.42.0
+
 * Fri Sep 03 2021 Milan Crha <mcrha@redhat.com> - 3.41.3-1
 - Update to 3.41.3
 
diff --git a/sources b/sources
index 35d43a1..2b146d1 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (evolution-3.41.3.tar.xz) = 0d3eb998768fbdad628e39ecaa61cd8cd4bb1aca8fd43f8129922b8420bb41d777db3c31a62b077b2b0cfa919ab6db298857fb07653160852f3c290d81fa9f6a
+SHA512 (evolution-3.42.0.tar.xz) = 435155a69ef324ff3b0f85c9f0ed3206a7dfe12bd8ad5e9a87dff5de839e837417147e81faa93c57f207dff4d92cdc36ac3856402493ff693055f267aed5cbeb