diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2023-01-07
+        * Version bump (3.13). (#406)
+
 2022-11-07
         * Version bump (3.12). (#389)
         * Use pretty-printer from copilot-prettyprinter. (#383)
diff --git a/copilot-language.cabal b/copilot-language.cabal
--- a/copilot-language.cabal
+++ b/copilot-language.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                copilot-language
-version:             3.12
+version:             3.13
 synopsis:            A Haskell-embedded DSL for monitoring hard real-time
                      distributed systems.
 description:
@@ -42,10 +42,10 @@
                , data-reify            >= 0.6 && < 0.7
                , mtl                   >= 2.0 && < 3
 
-               , copilot-core          >= 3.12 && < 3.13
-               , copilot-interpreter   >= 3.12 && < 3.13
-               , copilot-prettyprinter >= 3.12 && < 3.13
-               , copilot-theorem       >= 3.12 && < 3.13
+               , copilot-core          >= 3.13 && < 3.14
+               , copilot-interpreter   >= 3.13 && < 3.14
+               , copilot-prettyprinter >= 3.13 && < 3.14
+               , copilot-theorem       >= 3.13 && < 3.14
 
   exposed-modules: Copilot.Language
                  , Copilot.Language.Operators.BitWise