diff --git a/pyproject.toml b/pyproject.toml
index 67d9a4e5..62881083 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ dev-pylint = [
   "pylint == 4.0.4",
 ]
 dev-pytest = [
-  "async-solipsism == 0.8",
+  "async-solipsism == 0.9",
   "frequenz-repo-config[extra-lint-examples] == 0.13.7",
   "hypothesis == 6.143.0",
   "pytest == 8.4.2",