diff --git a/requirements.txt b/requirements.txt
index 3c26b3ff0..772f28d07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 # mail_inline_css
 premailer
-extract-msg
+extract-msg<=0.27.4
diff --git a/setup/mail_drop_target/setup.py b/setup/mail_drop_target/setup.py
index 28c57bb64..ce319f2e7 100644
--- a/setup/mail_drop_target/setup.py
+++ b/setup/mail_drop_target/setup.py
@@ -3,4 +3,7 @@ import setuptools
 setuptools.setup(
     setup_requires=['setuptools-odoo'],
     odoo_addon=True,
+    install_requires=[
+        'extract-msg<=0.27.4'
+    ]
 )