diff --git a/build-constraints.yaml b/build-constraints.yaml
index bd4af1f3..3eb20e8a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5339,7 +5339,7 @@ packages:
         - MultipletCombiner
 
     "Kazu Yamamoto <kazu@iij.ad.jp> @kazu-yamamoto":
-        - crypton < 1.0.0   # https://github.com/commercialhaskell/stackage/issues/7398
+        - crypton
         - crypton-connection
         - crypton-x509
         - crypton-x509-store