diff --git a/pyproject.toml b/pyproject.toml
index 575a3df..f60ef28 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -103,7 +103,7 @@ dev-pytest = [
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.2.0",
   "async-solipsism == 0.8",
-  "time-machine == 2.19.0",
+  "time-machine == 3.1.0",
   "hypothesis == 6.142.5",
   "frequenz-client-dispatch[cli]",
 ]