diff --git a/CHANGES.rst b/CHANGES.rst
index 286fc62..4842c70 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -8,7 +8,7 @@ Changes
 Version 5
 #########
 
-5.6 (unreleased)
+5.6 (2023-12-07)
 ~~~~~~~~~~~~~~~~
 
 - Fix issue `#138`__, a defect that hindered the creation of AST nodes that act as *markers*,
diff --git a/pglast/__init__.py b/pglast/__init__.py
index 9ccc9ff..4d739bc 100644
--- a/pglast/__init__.py
+++ b/pglast/__init__.py
@@ -18,7 +18,7 @@
 
 
 # This is injected automatically at release time
-__version__ = 'v5.5'
+__version__ = 'v5.6'
 "Package's version."
 
 __author__ = 'Lele Gaifax <lele@metapensiero.it>'
diff --git a/version.txt b/version.txt
index e5e7441..1b28632 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-5.5
\ No newline at end of file
+5.6
\ No newline at end of file