diff --git a/README.md b/README.md
index c6624eac6560f9f10d80fc5e7368cccefa362ed6..a08ea052008747981c7d4179752f26f266ff4062 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,9 @@ Then copy your resulting wheel and install it via pip on the target system.
 
 # Changelog
 
+## v0.6.3
+
+* _TBA_
 
 ## v0.6.2
 
diff --git a/setup.cfg b/setup.cfg
index addabcd61ac8afae2ff215c968fa22447f103a74..4e4a4c07a8c963378302255cca244c1abc5768b9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 # coding: utf-8
 [metadata]
 name = tempsdb
-version = 0.6.2
+version = 0.6.3a1
 long-description = file: README.md
 long-description-content-type = text/markdown; charset=UTF-8
 license_files = LICENSE