diff --git a/requirements.txt b/requirements.txt
index 905f984..8b45515 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ arrow>=0.15.6 	                # time operations
 Flask==1.1.2                    # webserver
 Flask-WTF==0.14.3               # webforms
 sphinxemoji==0.1.8		# for emoji support on documentation
+todoist-python==8.1.2           # todoist api
diff --git a/setup.py b/setup.py
index 1818309..cecb15c 100644
--- a/setup.py
+++ b/setup.py
@@ -17,6 +17,7 @@ __install_requires__ = ['pyowm==3.1.1',                   # weather
                         'arrow>=0.15.6',                  # time handling
                         'Flask==1.1.2',                   # webserver
                         'Flask-WTF==0.14.3',              # webforms
+                        'todoist-python==8.1.2',          # todoist api
                         ]
 
 __classifiers__ = [