diff --git a/prometheus.cabal b/prometheus.cabal
--- a/prometheus.cabal
+++ b/prometheus.cabal
@@ -1,5 +1,5 @@
 name:                prometheus
-version:             2.3.0
+version:             2.3.1
 synopsis:            Prometheus Haskell Client
 homepage:            http://github.com/bitnomial/prometheus
 bug-reports:         http://github.com/bitnomial/prometheus/issues
@@ -93,7 +93,7 @@
                , bytestring      >= 0.10 && < 0.13
                , containers      >= 0.5  && < 0.8
                , http-client     >= 0.4  && < 0.8
-               , http-client-tls >= 0.3  && < 0.4
+               , http-client-tls >= 0.3  && < 0.5
                , http-types      >= 0.8  && < 0.13
                , network-uri     >= 2.5  && < 2.7
                , text            >= 1.2  && < 2.2