diff --git a/pyproject.toml b/pyproject.toml
index e15bfbe..fb77287 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,9 +47,9 @@ dev-flake8 = [
   "pydocstyle == 6.3.0",
   "frequenz-client-base",
 ]
-dev-formatting = ["black == 26.3.1", "isort == 8.0.1"]
+dev-formatting = ["black == 26.5.1", "isort == 8.0.1"]
 dev-mkdocs = [
-  "black == 26.3.1",
+  "black == 26.5.1",
   "Markdown==3.10.2",
   "mike == 2.2.0",
   "mkdocs-gen-files == 0.6.1",
@@ -81,7 +81,7 @@ dev-pytest = [
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.3.0",
   "async-solipsism == 0.9",
-  "hypothesis == 6.152.4",
+  "hypothesis == 6.155.1",
   "frequenz-client-base",
 ]
 dev = [