diff --git a/guppylang/__init__.py b/guppylang/__init__.py
index 32189089..28b01893 100644
--- a/guppylang/__init__.py
+++ b/guppylang/__init__.py
@@ -3,3 +3,7 @@
 from guppylang.prelude import builtins, quantum
 from guppylang.prelude.builtins import Bool, Float, Int, List, linst, py
 from guppylang.prelude.quantum import qubit
+
+# This is updated by our release-please workflow, triggered by this
+# annotation: x-release-please-version
+__version__ = "0.9.0"