diff --git a/calliope/_version.py b/calliope/_version.py
index 4c513f3b5..3e6c95658 100644
--- a/calliope/_version.py
+++ b/calliope/_version.py
@@ -1 +1 @@
-__version__ = "0.6.6"
+__version__ = "0.6.6-post1"