diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2022-11-07
+        * Version bump (3.12). (#389)
+
 2022-09-07
         * Version bump (3.11). (#376)
 
diff --git a/copilot-libraries.cabal b/copilot-libraries.cabal
--- a/copilot-libraries.cabal
+++ b/copilot-libraries.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                copilot-libraries
-version:             3.11
+version:             3.12
 synopsis:            Libraries for the Copilot language.
 description:
   Libraries for the Copilot language.
@@ -41,7 +41,7 @@
                , containers       >= 0.4 && < 0.7
                , mtl              >= 2.0 && < 2.4
                , parsec           >= 2.0 && < 3.2
-               , copilot-language >= 3.11 && < 3.12
+               , copilot-language >= 3.12 && < 3.13
 
   exposed-modules:
       Copilot.Library.Libraries