diff --git a/build-constraints.yaml b/build-constraints.yaml
index 81118969..9d323aa5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3298,7 +3298,6 @@ packages:
         - pushbullet-types < 0 # build failure with GHC 8.4 https://github.com/tsani/pushbullet-hs/issues/1
         - rainbow < 0 # build failure with GHC 8.4 https://github.com/massysett/rainbow/issues/6
         - reroute < 0 # build faiulre with GHC 8.4 https://github.com/agrafix/Spock/issues/140
-        - stratosphere < 0 # build failure with GHC 8.4 https://github.com/frontrowed/stratosphere/issues/81
         - text-format < 0 # build failure with GHC 8.4 https://github.com/bos/text-format/issues/22
         - tinylog < 0 # build failure with GHC 8.4 https://gitlab.com/twittner/tinylog/issues/1
         - type-combinators < 0 # build failure with GHC 8.4 https://github.com/kylcarte/type-combinators/issues/8