diff --git a/build-constraints.yaml b/build-constraints.yaml
index 03204391..8a74f876 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3454,6 +3454,13 @@ packages:
         # Requires too-new base
         - xhtml < 3000.2.2.1 # base >= 4.11
 
+        # https://github.com/jtdaugherty/vty/issues/147
+        # (downstream build failure)
+        - microlens < 0.4.9
+        - microlens-ghc < 0.4.9
+        - microlens-platform < 0.3.10
+        - microlens-th < 0.4.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of