diff --git a/ChangeLog b/ChangeLog
index ae699a199..178c4050e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2012-03-09  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
+
+	* configure.ac, NEWS: Bump version to 0.8.3a.
+
 2012-03-09  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
 
 	Release Spot 0.8.3.
diff --git a/NEWS b/NEWS
index 09cf71e31..3c7ec6aab 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+New in spot 0.8.3a:
+
+  Nothing yet.
+
 New in spot 0.8.3 (2012-03-09):
 
   * Support for both Python 2.x and Python 3.x.
diff --git a/configure.ac b/configure.ac
index 76fdcc234..0d6146d2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@
 # 02111-1307, USA.
 
 AC_PREREQ([2.61])
-AC_INIT([spot], [0.8.3], [spot@lrde.epita.fr])
+AC_INIT([spot], [0.8.3a], [spot@lrde.epita.fr])
 AC_CONFIG_AUX_DIR([tools])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([1.11 gnu tar-ustar color-tests parallel-tests])