diff --git a/_service b/_service
new file mode 100644
index 0000000..225902d
--- /dev/null
+++ b/_service
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<services>
+  <service name="obs_scm" mode="manual">
+    <param name="scm">git</param>
+    <param name="url">https://gitlab.gnome.org/GNOME/evolution-ews.git</param>
+    <param name="revision">3.52.0</param>
+    <param name="versionformat">@PARENT_TAG@+@TAG_OFFSET@</param>
+    <param name="versionrewrite-pattern">(.*)\+0</param>
+    <param name="versionrewrite-replacement">\1</param>
+    <param name="changesgenerate">disable</param>
+  </service>
+  <service name="tar" mode="buildtime"/>
+  <service name="recompress" mode="buildtime">
+    <param name="file">*.tar</param>
+    <param name="compression">zst</param>
+  </service>
+  <service name="set_version" mode="manual" />
+</services>
+
diff --git a/evolution-ews-3.50.3.tar.xz b/evolution-ews-3.50.3.tar.xz
deleted file mode 100644
index 6869e22..0000000
--- a/evolution-ews-3.50.3.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e2fa5941376ad57e07d2673f8676c31f7f2b068d49f68ea0fb8bafeabb529bed
-size 708336
diff --git a/evolution-ews-3.52.0.obscpio b/evolution-ews-3.52.0.obscpio
new file mode 100644
index 0000000..7f622d9
--- /dev/null
+++ b/evolution-ews-3.52.0.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aadabfd3c15bd07d8a493d164d3b36980d1c7141ad860e3ed4c3d4fa9905c3ca
+size 12372493
diff --git a/evolution-ews.changes b/evolution-ews.changes
index e8f4f00..e6b4974 100644
--- a/evolution-ews.changes
+++ b/evolution-ews.changes
@@ -1,3 +1,34 @@
+-------------------------------------------------------------------
+Fri Mar 15 07:16:24 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 3.52.0:
+  + Bug Fix: Use OAuth2 protocol 2.0 by default.
+  + Updated translations.
+
+-------------------------------------------------------------------
+Fri Mar  1 08:40:44 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 3.51.3:
+  + Retract dialog can duplicate cancellation mails.
+  + Do not change organizer when adding meeting from mail.
+  + Impersonate mailbox uses original user's connection.
+  + build: Make sure tests run in serial.
+
+-------------------------------------------------------------------
+Mon Feb 12 15:07:31 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 3.51.2:
+  + build: Bump CMake version requirement to 3.15.
+
+-------------------------------------------------------------------
+Tue Jan 16 09:43:46 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 3.51.1:
+  + build: Use -Wshadow build option, if available.
+  + Microsoft365: Read Organizational Contacts and Users.
+  + Update Flatpak manifest.
+- Convert to source service for easier updating.
+
 -------------------------------------------------------------------
 Fri Jan  5 15:42:58 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
 
diff --git a/evolution-ews.obsinfo b/evolution-ews.obsinfo
new file mode 100644
index 0000000..35c0ff8
--- /dev/null
+++ b/evolution-ews.obsinfo
@@ -0,0 +1,4 @@
+name: evolution-ews
+version: 3.52.0
+mtime: 1710485170
+commit: d8c2a005d9b730e28a8c61b0197347d55bed6050
diff --git a/evolution-ews.spec b/evolution-ews.spec
index 1eef9ac..f6ef7f5 100644
--- a/evolution-ews.spec
+++ b/evolution-ews.spec
@@ -20,16 +20,16 @@
 %define _version %(echo %{version} | grep -E -o '[0-9]+\.[0-9]+\.[0-9]+')
 
 Name:           evolution-ews
-Version:        3.50.3
+Version:        3.52.0
 Release:        0
 Summary:        Exchange Connector for Evolution, compatible with Exchange 2007 and later
 License:        LGPL-2.1-only
 Group:          Productivity/Networking/Email/Clients
 URL:            https://wiki.gnome.org/Apps/Evolution
-Source0:        https://download.gnome.org/sources/evolution-ews/3.50/%{name}-%{version}.tar.xz
+Source0:        %{name}-%{version}.tar.zst
 
 BuildRequires:  c++_compiler
-BuildRequires:  cmake
+BuildRequires:  cmake >= 3.15
 BuildRequires:  fdupes
 BuildRequires:  intltool
 BuildRequires:  pkgconfig