diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 `unicode-collation` uses [PVP Versioning](https://pvp.haskell.org).
 
+## 0.1.3.5
+
+  + Allow text 2.1.
+
 ## 0.1.3.4
 
   + Allow base 4.18.
diff --git a/unicode-collation.cabal b/unicode-collation.cabal
--- a/unicode-collation.cabal
+++ b/unicode-collation.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                unicode-collation
-version:             0.1.3.4
+version:             0.1.3.5
 synopsis:            Haskell implementation of the Unicode Collation Algorithm
 description:         This library provides a pure Haskell implementation of
                      the Unicode Collation Algorithm described at
@@ -84,7 +84,7 @@
                      , th-lift-instances
                      , containers
                      , binary
-                     , text >= 1.2 && < 2.1
+                     , text >= 1.2 && < 2.2
                      , parsec
 
   other-extensions:    TemplateHaskell