diff --git a/ext/flatpak/org.angryip.ipscan.yaml b/ext/flatpak/org.angryip.ipscan.yaml
index bb28ff61..6420c440 100644
--- a/ext/flatpak/org.angryip.ipscan.yaml
+++ b/ext/flatpak/org.angryip.ipscan.yaml
@@ -38,6 +38,7 @@ modules:
     sources:
       - type: file
         url: https://github.com/angryip/ipscan/releases/download/3.9.1/ipscan-linux64-3.9.1.jar
+        sha256: b8b12628c324cddb1e1a464c1caf2597b66ce8f5f1057ffa86c1fe7b1c241b40
         dest-filename: ipscan.jar
         only-arches: [x86_64]
         x-checker-data: