diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2023-05-07
+        * Version bump (3.15). (#438)
+
 2023-03-07
         * Version bump (3.14). (#422)
         * Replace import of Copilot.Language.prettyPrint. (#412)
diff --git a/copilot.cabal b/copilot.cabal
--- a/copilot.cabal
+++ b/copilot.cabal
@@ -1,5 +1,5 @@
 name:                copilot
-version:             3.14
+version:             3.15
 cabal-version:       >= 1.10
 license:             BSD3
 license-file:        LICENSE
@@ -52,12 +52,12 @@
                      , directory             >= 1.3  && < 1.4
                      , filepath              >= 1.4  && < 1.5
 
-                     , copilot-core          >= 3.14 && < 3.15
-                     , copilot-theorem       >= 3.14 && < 3.15
-                     , copilot-language      >= 3.14 && < 3.15
-                     , copilot-libraries     >= 3.14 && < 3.15
-                     , copilot-c99           >= 3.14 && < 3.15
-                     , copilot-prettyprinter >= 3.14 && < 3.15
+                     , copilot-core          >= 3.15 && < 3.16
+                     , copilot-theorem       >= 3.15 && < 3.16
+                     , copilot-language      >= 3.15 && < 3.16
+                     , copilot-libraries     >= 3.15 && < 3.16
+                     , copilot-c99           >= 3.15 && < 3.16
+                     , copilot-prettyprinter >= 3.15 && < 3.16
 
 
     exposed-modules: Language.Copilot, Language.Copilot.Main