diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for interval-algebra
 
+## 2.1.3
+
+* Removes the version constraints on the `witch` package.
+
 ## 2.1.2
 
 * Exports `IntervalAlgebra.IntervalDiagram` module and makes the following changes so as to export it as `safe`:
diff --git a/interval-algebra.cabal b/interval-algebra.cabal
--- a/interval-algebra.cabal
+++ b/interval-algebra.cabal
@@ -1,14 +1,18 @@
 cabal-version:  2.2
 name:           interval-algebra
-version:        2.1.2
+version:        2.1.3
 synopsis:       An implementation of Allen's interval algebra for temporal logic
 description:    Please see the README on GitHub at <https://github.com/novisci/interval-algebra>
 category:       Algebra,Time
 homepage:       https://github.com/novisci/interval-algebra#readme
 bug-reports:    https://github.com/novisci/interval-algebra/issues
 author:         Bradley Saul
-maintainer:     bsaul@novisci.com
-copyright:      2020 NoviSci
+                Brendan Brown
+maintainer:     bsaul@novisci.com, 2020-2022
+                bbrown@targetrwe.com, 2023
+
+copyright:      (c) NoviSci, 2020-2022
+                Target RWE, 2023
 license:        BSD-3-Clause
 license-file:   LICENSE
 build-type:     Simple
@@ -47,7 +51,7 @@
     , safe ^>= 0.3
     , text ^>= 1.2 || ^>= 2.0
     , time >= 1.9 && < 2
-    , witch ^>= 1.0
+    , witch
     , witherable ^>= 0.4
   default-language: Haskell2010
 
@@ -118,5 +122,5 @@
     , interval-algebra
     , prettyprinter ^>= 1.7
     , time >= 1.9 && < 2
-    , witch ^>= 1.0
+    , witch
   default-language: Haskell2010