diff --git a/conf/app.src b/conf/app.src
index f4ff841..4d80c26 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/standardnotes/syncing-server/archive/3.20.5.zip
-SOURCE_SUM=86B9A423FD910B1C1D65ED4B98FAE9459B70E78B110E3ACEC8B6EF4627C5E0B1
+SOURCE_URL=https://github.com/standardnotes/syncing-server/archive/3.22.8.zip
+SOURCE_SUM=DBAB9503D2E52392DB1A272D3C00AE267C9515119F48E2F20BF56E44FA1ECD28
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index 7d2186c..3ab4ab5 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "The Standard Notes syncing server. An end-to-end encrypted note-taking app."
     },
-    "version": "3.20.5~ynh2",
+    "version": "3.22.8~ynh1",
     "url": "https://github.com/standardnotes/syncing-server",
     "license": "AGPL-3.0-or-later",
     "maintainer": {
diff --git a/sources/patches/app-02-fix-gemfile-mimemagic.patch b/sources/patches/app-02-fix-gemfile-mimemagic.patch
deleted file mode 100644
index cde6ed7..0000000
--- a/sources/patches/app-02-fix-gemfile-mimemagic.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff --git a/Gemfile.lock b/Gemfile.lock
-index d209769..a6c9687 100644
---- a/Gemfile.lock
-+++ b/Gemfile.lock
-@@ -132,7 +132,8 @@ GEM
-     marcel (0.3.3)
-       mimemagic (~> 0.3.2)
-     method_source (1.0.0)
--    mimemagic (0.3.5)
-+    mimemagic (0.3.8)
-+      nokogiri (~> 1)
-     mini_mime (1.0.2)
-     mini_portile2 (2.5.0)
-     minitest (5.14.2)