diff --git a/simple-log.cabal b/simple-log.cabal
--- a/simple-log.cabal
+++ b/simple-log.cabal
@@ -1,5 +1,5 @@
 Name:                 simple-log
-Version:              0.9.7
+Version:              0.9.8
 Synopsis:             Simple log for Haskell
 Description:          Log library for Haskell
 License:              BSD3
@@ -24,7 +24,7 @@
     base >= 4.0 && < 6,
     async >= 2.0 && < 3.0,
     base-unicode-symbols >= 0.2 && < 0.3,
-    containers >= 0.5 && < 0.6,
+    containers >= 0.5 && < 0.7,
     data-default >= 0.5 && < 0.8,
     deepseq >= 1.4 && < 1.5,
     directory >= 1.2 && < 1.4,
