diff --git a/lemonauth/templates/lemonauth/login.html b/lemonauth/templates/lemonauth/login.html
index de85cbd..9297f27 100644
--- a/lemonauth/templates/lemonauth/login.html
+++ b/lemonauth/templates/lemonauth/login.html
@@ -31,9 +31,9 @@
 			{% form_field form.password %}
 			{% form_field form.otp_token %}
 
-			<div class="custom-control custom-checkbox">
-				<input id="id_{{ form.otp_trust_agent.name }}" name="{{ form.otp_trust_agent.name }}" class="custom-control-input" type="checkbox" />
-				<label for="id_{{ form.otp_trust_agent.name }}" class="custom-control-label">remember this browser (don't tick this on a public computer!)</label>
+			<div class="form-group form-check">
+				<input id="id_{{ form.otp_trust_agent.name }}" name="{{ form.otp_trust_agent.name }}" class="form-check-input" type="checkbox" />
+				<label for="id_{{ form.otp_trust_agent.name }}" class="form-check-label">remember this browser (don't tick this on a public computer!)</label>
 			</div>
 		</div>