diff --git a/odoo/odoo/Dockerfile.12.dev b/odoo/odoo/Dockerfile.12.dev
index 1747fda..a738b79 100644
--- a/odoo/odoo/Dockerfile.12.dev
+++ b/odoo/odoo/Dockerfile.12.dev
@@ -5,7 +5,8 @@ LABEL maintainer="Yaltik - Fabien Bourgeois <fabien@yaltik.com>"
 # RUN .local/bin/pip3 install --user pgcli
 # COPY pgcli.sh ./
 # Odoo specific
-RUN .local/bin/pip3 install --user --no-cache-dir watchdog==0.10.7
+# Gevent : last py 3.5, fixe local dev problem with CPU 100% on Fedora (kernel problem ?)
+RUN .local/bin/pip3 install --user --no-cache-dir watchdog==0.10.7 gevent==20.9.0
 COPY shell12.sh /opt/odoo/shell.sh
 COPY i18n.sh /opt/odoo/i18n.sh
 COPY launch12.dev.sh /opt/odoo/launch.sh