diff --git a/requirements.txt b/requirements.txt
index a0c78f9..75b234d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 authlib~=0.15
 Django~=3.1
-django-crispy-forms
+django-crispy-forms~=1.9
 django-polymorphic~=3.0
 django-tables2~=2.3
 gunicorn~=20.0
diff --git a/tox.ini b/tox.ini
index 293dbc8..e9d5c1b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,7 @@ sitepackages = False
 deps =
     coverage
     Django~=3.1
+    django-crispy-forms~=1.9
     django-polymorphic~=3.0
     django-tables2~=2.3
 commands =