diff --git a/stack.yaml b/stack.yaml
index 672bd03cdf..2a3728a6aa 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -12,3 +12,4 @@ extra-deps:
 - hpack-0.12.0
 - path-0.5.7
 - path-io-1.1.0
+- tls-1.3.5 # BECAUSE TLS BUG #124