diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6f685b66..09fe5962 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1131,6 +1131,9 @@ packages:
         # https://github.com/fpco/stackage/issues/646
         - clock < 0.5
 
+        # https://github.com/ocharles/engine.io/issues/22
+        - engine-io < 1.2.8
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: