diff --git a/recipes/pb-assembly/meta.yaml b/recipes/pb-assembly/meta.yaml
index 070241c6513ba..584527cde8ecd 100644
--- a/recipes/pb-assembly/meta.yaml
+++ b/recipes/pb-assembly/meta.yaml
@@ -9,6 +9,7 @@ requirements:
   build:
     - python
   run:
+    - openssl <1.1
     - python
     - pb-falcon>=0.2.5
     - pb-dazzler