diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08f6d9e078..ab28addc30 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ About changelog [here](https://keepachangelog.com/en/1.0.0/)
 - Check for existence of case report files before creating sidebar links
 - Better description of HPO and OMIM terms for patients submitted to Matchmaker Exchange
 - Remove null non-mandatory key/values when updating a case
+- Freeze WTForms<3 due to several form input rendering changes
 
 ## [4.48.1]
 ### Fixed
diff --git a/requirements.txt b/requirements.txt
index c031588760..30b90e394b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ Flask-Bootstrap
 Flask-CORS
 path.py
 Flask-Markdown
+WTForms<3
 Flask-WTF
 Flask-Mail
 coloredlogs<=14.0