diff --git a/requirements.txt b/requirements.txt
index 3380e09..a9290fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 coverage
 jyquickhelper
 keyring
-pyquickhelper>=1.7.2438
+pyquickhelper>=1.7.2539
 scikit-learn
 scipy
 sphinxjp.themes.sphinxjp