diff --git a/looksee.cabal b/looksee.cabal
--- a/looksee.cabal
+++ b/looksee.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           looksee
-version:        0.8.3
+version:        0.8.4
 synopsis:       A simple text parser with decent errors
 description:    Please see the README on GitHub at <https://github.com/ejconlon/looksee#readme>
 category:       Parsing
@@ -65,7 +65,7 @@
   build-depends:
       base >=4.12 && <5
     , bifunctors >=5.5 && <5.7
-    , containers >=0.6 && <0.8
+    , containers >=0.6 && <0.9
     , errata >=0.4.0.1 && <0.5
     , hashable >=1.4 && <1.6
     , mmorph ==1.2.*
@@ -114,7 +114,7 @@
   build-depends:
       base >=4.12 && <5
     , bifunctors >=5.5 && <5.7
-    , containers >=0.6 && <0.8
+    , containers >=0.6 && <0.9
     , errata >=0.4.0.1 && <0.5
     , hashable >=1.4 && <1.6
     , looksee