diff --git a/src/projects/defi/blackbox/index.yaml b/src/projects/defi/blackbox/index.yaml
index bc955015..6f1eeacc 100644
--- a/src/projects/defi/blackbox/index.yaml
+++ b/src/projects/defi/blackbox/index.yaml
@@ -3,7 +3,7 @@ categories: [ defi ]
 ecosystem: Secret
 description: 'Collection of tools allowing you send & receive SCRT anonymously'
 project_type: DeFi
-product_launch_day: 2021-15-02
+product_launch_day: "2021-15-02"
 technology:
   type: TEE
   name: Trusted execution environment