diff --git a/conf/app.src b/conf/app.src
index 987c9ca..4726c5b 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://api.github.com/repos/jgraph/drawio/tarball/v20.8.18
-SOURCE_SUM=f0b38aa761adb769730707346782df66eb6558c173a6561a98a55ec2ee80e126
+SOURCE_URL=https://api.github.com/repos/jgraph/drawio/tarball/v20.8.20
+SOURCE_SUM=cc1ac86ad14947fe870ec25da147ff505824745012f24699ebfd45ed65dafb33
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index ba73a33..856327c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams",
         "fr": "Application en ligne qui permet de faire des schémas et du dessin vectoriel"
     },
-    "version": "20.8.18~ynh1",
+    "version": "20.8.20~ynh1",
     "url": "https://www.diagrams.net/",
     "upstream": {
         "license": "Apache-2.0",