diff --git a/build-constraints.yaml b/build-constraints.yaml
index fe895a14..0c6abea5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1172,6 +1172,9 @@ packages:
         # https://github.com/fpco/stackage/issues/665
         - iproute < 1.5
 
+        # https://github.com/fpco/stackage/issues/666
+        - tar < 0.4.2
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: