diff --git a/pyproject.toml b/pyproject.toml
index 4f8e5ca..6e5d859 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ dev-pytest = [
   "pylint == 3.3.7", # We need this to check for the examples
   "frequenz-repo-config[extra-lint-examples] == 0.13.4",
   "pytest-mock == 3.14.1",
-  "pytest-asyncio == 0.26.0",
+  "pytest-asyncio == 1.0.0",
   "async-solipsism == 0.7",
   "hypothesis == 6.132.0",
   "frequenz-quantities[marshmallow]",