diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5d67284e..5db33caf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1336,7 +1336,7 @@ packages:
         - byteset
         - Clipboard
         - fgl-arbitrary
-        - gmail-simple
+        - gmail-simple < 0 # 0.1.0.5 fails to compile with base64-1.0 https://github.com/commercialhaskell/stackage/issues/7301
         - graphviz
         - grouped-list
         - haskintex