diff --git a/build-constraints.yaml b/build-constraints.yaml
index 61151715..eec53f9c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3432,6 +3432,9 @@ packages:
         # https://github.com/fpco/stackage/issues/2958
         - hasql < 0.20
 
+        # https://github.com/fpco/stackage/issues/2967
+        - swagger2 < 2.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of