diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 31ecd0b7fa3e30f47b5a260e993c0b0e20b96693..8b8908d4278d905aac34c2b7e88852c09d682305 100644
--- a/hardening_manifest.yaml
+++ b/hardening_manifest.yaml
@@ -43,10 +43,10 @@ resources:
     type: sha256
     value: ad73f845965cfd528e70f654e428073121a3fa0dc23caac81a1b1300277d4dba
 - filename: source-controller.tar.gz
-  url: https://github.com/fluxcd/source-controller/archive/refs/tags/v0.13.2.tar.gz
+  url: https://github.com/fluxcd/source-controller/archive/refs/tags/v0.15.3.tar.gz
   validation:
     type: sha256
-    value: 7aec1ba5f52065e36d9fdd3e25af321a2ae1f24fd8cef457fc362ec18dd6558b
+    value: ef1ca6dada1412972b3b13af50be32648c51fc83f54b4951b0900359a9d5812f 
 - filename: tini-amd64
   url: https://github.com/krallin/tini/releases/download/v0.19.0/tini-amd64
   validation: