diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8177b0b3..033798ab 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -863,6 +863,9 @@ packages:
 
     "Stefan Saasen <stefan@saasen.me>":
         - jwt
+        
+    "Sven Bartscher sven.bartscher@weltraumschlangen.de @kritzefitz":
+        - setlocale
 
     "Stackage upper bounds":
         # GHC 7.8 uppdate bound