diff --git a/build-constraints.yaml b/build-constraints.yaml
index 123b4e8b..5ebf663d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -758,6 +758,7 @@ packages:
         - rest-client < 0.5
         - rest-types < 1.13
         - rest-core < 0.35
+        - rest-gen < 0.17
 
 # Package flags are applied to individual packages, and override the values of
 # global-flags