diff --git a/requirements-docs.in b/requirements-docs.in
index 88c14dc3..ade68fba 100644
--- a/requirements-docs.in
+++ b/requirements-docs.in
@@ -16,6 +16,7 @@ Flask-SQLAlchemy
 flask_replicated
 inflection
 logmatic-python
+raven[flask]
 
 # docs specific
 sphinx
diff --git a/requirements-docs.txt b/requirements-docs.txt
index ad97eaed..f8b71f8f 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -56,6 +56,8 @@ pyparsing==2.4.7
     # via packaging
 pytz==2019.3
     # via babel
+raven[flask]==6.10.0
+    # manual debug
 requests==2.25.1
     # via sphinx
 six==1.15.0