diff --git a/requirements-app.txt b/requirements-app.txt
index 3cf074cdf..42fc82b9d 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -18,6 +18,7 @@ pytz==2019.3
 gunicorn==20.0.4
 eventlet==0.25.1
 notifications-python-client==5.5.1
+WTForms==2.2.1  # Pinned because of breaking change in 2.3.0
 
 # PaaS
 awscli-cwlogs>=1.4,<1.5
diff --git a/requirements.txt b/requirements.txt
index 04a484ff6..1b74170b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,6 +20,7 @@ pytz==2019.3
 gunicorn==20.0.4
 eventlet==0.25.1
 notifications-python-client==5.5.1
+WTForms==2.2.1  # Pinned because of breaking change in 2.3.0
 
 # PaaS
 awscli-cwlogs>=1.4,<1.5
@@ -74,6 +75,5 @@ texttable==1.6.2
 urllib3==1.25.9
 webencodings==0.5.1
 Werkzeug==1.0.1
-WTForms==2.3.0
 xlrd==1.2.0
 xlwt==1.3.0