diff --git a/HISTORY.md b/HISTORY.md
index 65bccd7fe..7ea2bb4ce 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,7 @@
+# 0.40.0
+
+[...]
+
 # 0.39.6
 
 Bumped compatibility of AbstractPPL to include 0.13.
diff --git a/Project.toml b/Project.toml
index 92fb7e32f..3956c079f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "Turing"
 uuid = "fce5fe82-541a-59a6-adf8-730c64b5f9a0"
-version = "0.39.6"
+version = "0.40.0"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"