diff --git a/cabal.project b/cabal.project
index d7d2d5167..78e1e14d3 100644
--- a/cabal.project
+++ b/cabal.project
@@ -54,6 +54,8 @@ source-repository-package
 
 source-repository-package
     type: git
-    location: https://github.com/kazu-yamamoto/hs-tls.git
-    tag: b76cc18fbcc6edaec27c6727377b603fa9cf59ae
+    location: https://github.com/haskell-tls/hs-tls.git
+    tag: 7f060799ea762c5d7ff058d264dae5f0294fac79
+-- passes 7f060799ea762c5d7ff058d264dae5f0294fac79
+-- fails 1927590272ada1e0a32c29ca29ae9cc8d5ed3595
     subdir: tls
diff --git a/simplexmq.cabal b/simplexmq.cabal
index 007610745..71e23b666 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -319,7 +319,7 @@ library
     , stm ==2.5.*
     , time ==1.12.*
     , time-manager ==0.0.*
-    , tls ==2.1.11.*
+    , tls ==2.1.6.*
     , transformers ==0.6.*
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*