diff --git a/pkgs/desktops/gnome/core/evolution-data-server/default.nix b/pkgs/desktops/gnome/core/evolution-data-server/default.nix
index f372f688eabc..24a2e7d50e0d 100644
--- a/pkgs/desktops/gnome/core/evolution-data-server/default.nix
+++ b/pkgs/desktops/gnome/core/evolution-data-server/default.nix
@@ -51,13 +51,13 @@
 
 stdenv.mkDerivation rec {
   pname = "evolution-data-server";
-  version = "3.50.1";
+  version = "3.50.2";
 
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/evolution-data-server/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "kfT/w4objS/ok5g0RJrFQcC/9KObRE7cKpUpNEoo6Yo=";
+    sha256 = "XmYnA4jVDBTzsa4/oNISe5/tznUqzTk7VUUoGwH8SXA=";
   };
 
   patches = [
diff --git a/pkgs/desktops/gnome/core/evolution-data-server/hardcode-gsettings.patch b/pkgs/desktops/gnome/core/evolution-data-server/hardcode-gsettings.patch
index 4857efc4c230..f502e89a71bd 100644
--- a/pkgs/desktops/gnome/core/evolution-data-server/hardcode-gsettings.patch
+++ b/pkgs/desktops/gnome/core/evolution-data-server/hardcode-gsettings.patch
@@ -202,7 +202,7 @@ index 2525856..7ecc1a8 100644
  				g_clear_object (&settings);
  			}
 diff --git a/src/calendar/libecal/e-reminder-watcher.c b/src/calendar/libecal/e-reminder-watcher.c
-index c01e8b2..59fb4c4 100644
+index ade0a73..d7c3e73 100644
 --- a/src/calendar/libecal/e-reminder-watcher.c
 +++ b/src/calendar/libecal/e-reminder-watcher.c
 @@ -2626,8 +2626,33 @@ e_reminder_watcher_init (EReminderWatcher *watcher)
@@ -312,7 +312,7 @@ index bef9188..ce92f6c 100644
  	g_clear_object (&settings);
  
 diff --git a/src/camel/camel-gpg-context.c b/src/camel/camel-gpg-context.c
-index db5fc2e..162e00f 100644
+index 4deae76..ebe0a1b 100644
 --- a/src/camel/camel-gpg-context.c
 +++ b/src/camel/camel-gpg-context.c
 @@ -747,7 +747,18 @@ gpg_ctx_get_executable_name (void)
@@ -505,7 +505,7 @@ index 3bb1071..199e822 100644
  		g_object_unref (settings);
  
 diff --git a/src/libedataserver/e-oauth2-service.c b/src/libedataserver/e-oauth2-service.c
-index 2364f3e..e8f59f2 100644
+index af59b0b..0c7e75e 100644
 --- a/src/libedataserver/e-oauth2-service.c
 +++ b/src/libedataserver/e-oauth2-service.c
 @@ -94,7 +94,18 @@ eos_default_guess_can_process (EOAuth2Service *service,