diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4f1514fb..aad87518 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4362,7 +4362,6 @@ packages:
     "Blocked per http-client-0.6":
         - amazonka < 0 # via http-client-0.6.1
         - amazonka-core < 0 # via http-client-0.6.1
-        - cayley-client < 0 # via http-client-0.6.1
         - github < 0 # via http-client-0.6.1
         - hailgun < 0 # via http-client-0.6.1
         - language-puppet < 0 # via http-client-0.6.1