diff --git a/conf/app.src b/conf/app.src
index 31477c9..ae31077 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,6 +1,6 @@
-SOURCE_URL=https://download.invoiceninja.com/ninja-v4.5.18.zip
-SOURCE_SUM=f633d841df4bfbcedeea07c846749444ecd5c080fa93009846c62cf193f1bb93
+SOURCE_URL=https://download.invoiceninja.com/ninja-v4.5.21.zip
+SOURCE_SUM=09da739aded27d61ef60af0183c8be6655a10c3cd889b3717b803178c2f74d07
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=ninja-v4.5.18.zip
+SOURCE_FILENAME=ninja-v4.5.21.zip
diff --git a/manifest.json b/manifest.json
index 6f8e009..75fae09 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "Create and email invoices, track payments and expenses, and time tasks"
     },
-    "version": "1.0~ynh1",
+    "version": "4.5.21~ynh1",
     "url": "https://invoiceninja.org",
     "license": "AAL",
     "maintainer": {