Index: b/config-value.cabal
===================================================================
--- a/config-value.cabal
+++ b/config-value.cabal
@@ -1,6 +1,7 @@
 cabal-version:       2.2
 name:                config-value
 version:             0.8.3
+x-revision: 9
 synopsis:            Simple, layout-based value language similar to YAML or JSON
 license:             MIT
 license-file:        LICENSE
@@ -40,15 +41,15 @@ library
     Config.Value
 
   build-depends:
-    base       >= 4.8     && < 4.18,
+    base       >= 4.8     && < 4.22,
     array      >= 0.4     && < 0.6,
-    containers >= 0.5     && < 0.7,
+    containers >= 0.5     && < 0.8,
     pretty     >= 1.1.1.0 && < 1.2,
-    text       >= 1.2.0.4 && < 2.1,
+    text       >= 1.2.0.4 && < 2.2,
 
   build-tool-depends:
-    alex:alex   ^>= 3.2.4,
-    happy:happy >= 1.19 && <1.21,
+    alex:alex   >= 3.2,
+    happy:happy >= 1.19 && <2.2,
 
   hs-source-dirs:      src
   default-language:    Haskell2010
