diff --git a/pyproject.toml b/pyproject.toml
index 4109171..a402824 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ python = ["3.14", "3.13", "3.12"]
 dependencies = [
     "ruff==0.15.22",
     "aiohttp==3.14.3",
-    "prometheus-client==0.25.0",
+    "prometheus-client==0.26.0",
     "mashumaro==3.22",
     "mkdocs-material==9.7.7",
     "mkdocstrings[python]==1.0.6",