diff --git a/changelog.d/5283.misc b/changelog.d/5283.misc
new file mode 100644
index 000000000..002721e56
--- /dev/null
+++ b/changelog.d/5283.misc
@@ -0,0 +1 @@
+Specify the type of reCAPTCHA key to use.
diff --git a/docs/CAPTCHA_SETUP.rst b/docs/CAPTCHA_SETUP.rst
index 19a204d9c..0c22ee4ff 100644
--- a/docs/CAPTCHA_SETUP.rst
+++ b/docs/CAPTCHA_SETUP.rst
@@ -7,6 +7,7 @@ Requires a public/private key pair from:
 
 https://developers.google.com/recaptcha/
 
+Must be a reCAPTCHA v2 key using the "I'm not a robot" Checkbox option
 
 Setting ReCaptcha Keys
 ----------------------