diff --git a/tildes/requirements-dev.txt b/tildes/requirements-dev.txt
index 90ddaa8..6d48b0f 100644
--- a/tildes/requirements-dev.txt
+++ b/tildes/requirements-dev.txt
@@ -25,6 +25,7 @@ html5validator==0.3.3
 hupper==1.10.2            # via pyramid
 idna==2.10                # via requests
 iniconfig==1.0.0          # via pytest
+invoke==1.4.1
 ipython-genutils==0.2.0   # via traitlets
 ipython==7.16.1
 isort==4.3.21             # via pylint
diff --git a/tildes/requirements.in b/tildes/requirements.in
index 88e2784..2fe3844 100644
--- a/tildes/requirements.in
+++ b/tildes/requirements.in
@@ -7,6 +7,7 @@ click
 cornice
 gunicorn
 html5lib
+invoke
 ipython
 marshmallow
 Pillow
diff --git a/tildes/requirements.txt b/tildes/requirements.txt
index f7fa916..8c6824e 100644
--- a/tildes/requirements.txt
+++ b/tildes/requirements.txt
@@ -15,6 +15,7 @@ gunicorn==20.0.4
 html5lib==1.1
 hupper==1.10.2            # via pyramid
 idna==2.10                # via requests
+invoke==1.4.1
 ipython-genutils==0.2.0   # via traitlets
 ipython==7.16.1
 jedi==0.17.2              # via ipython