diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -25,7 +25,7 @@
 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGE.
 
-Copyright (c) 2011-2014, Geoffrey Mainland
+Copyright (c) 2011-2022, Geoffrey Mainland
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,2 +1,3 @@
 import Distribution.Simple
+
 main = defaultMain
diff --git a/symbol.cabal b/symbol.cabal
--- a/symbol.cabal
+++ b/symbol.cabal
@@ -1,19 +1,31 @@
 name:           symbol
-version:        0.2.4
-cabal-version:  >= 1.6
+version:        0.2.4.1
+cabal-version:  >= 1.10
 license:        BSD3
 license-file:   LICENSE
 copyright:      (c) 2006-2011 Harvard University
-		(c) 2011-2014 Geoffrey Mainland
-author:         Geoffrey Mainland <mainland@cs.drexel.edu>
-maintainer:     Geoffrey Mainland <mainland@cs.drexel.edu>
+                (c) 2011-2024 Geoffrey Mainland
+author:         Geoffrey Mainland <mainland@drexel.edu>
+maintainer:     Geoffrey Mainland <mainland@drexel.edu>
 stability:      alpha
-homepage:       http://www.cs.drexel.edu/~mainland/
+homepage:       https://github.com/mainland/symbol
 category:       Data
 synopsis:       A 'Symbol' type for fast symbol comparison.
 description:    Provides a 'Symbol' data type allowing fast symbol comparisons
                 and functions for interning symbols and recovering their
                 'String' representation.
+tested-with:    GHC==8.0.2,
+                GHC==8.2.2,
+                GHC==8.4.3,
+                GHC==8.6.5,
+                GHC==8.8.4,
+                GHC==8.10.7,
+                GHC==9.0.2,
+                GHC==9.2.2,
+                GHC==9.4.8,
+                GHC==9.6.4,
+                GHC==9.8.2,
+                GHC==9.10.1
 
 build-type:     Simple
 
@@ -24,8 +36,10 @@
 
   build-depends:
     base       >= 4   && < 5,
-    containers >= 0.2 && < 0.6,
+    containers >= 0.2 && < 0.8,
     deepseq    >= 1.0 && < 2.0
+
+  default-language: Haskell2010
 
 source-repository head
   type:     git