diff --git a/.env.sample b/.env.sample
index 896dc5bcb..4c46cbd77 100644
--- a/.env.sample
+++ b/.env.sample
@@ -8,8 +8,8 @@ STORIES_CEILING=300
 CDN_URL=http://xpto.cloudfront.net
 NEW_RELIC_LICENSE_KEY=your_license_key
 INTEGRATION_URI_MATTERMOST=http://foo.com
-RECAPTCHA_PUBLIC_KEY=
-RECAPTCHA_PRIVATE_KEY=
+RECAPTCHA_SITE_KEY=
+RECAPTCHA_SECRET_KEY=
 WEBPACK_HOST="0.0.0.0"
 WEBPACK_MANIFEST_HOST="localhost"
 WEBPACK_MANIFEST_PORT="3808"
diff --git a/README.md b/README.md
index 557c01b58..ae84b8277 100644
--- a/README.md
+++ b/README.md
@@ -206,7 +206,7 @@ to the previous section for instructions. Then:
     $ heroku config:set CDN_URL=http://xpto.cloudfront.net
 
     # Google Recaptcha keys
-    $ heroku config:set RECAPTCHA_PUBLIC_KEY=xyz RECAPTCHA_PRIVATE_KEY=xyz
+    $ heroku config:set RECAPTCHA_SITE_KEY=xyz RECAPTCHA_SECRET_KEY=xyz
 
     # Add postgresql
     $ heroku addons:create heroku-postgresql:hobby-dev
diff --git a/app.json b/app.json
index 84b16673d..ccf68bf04 100644
--- a/app.json
+++ b/app.json
@@ -44,12 +44,12 @@
       "value": "production",
       "required": true
     },
-    "RECAPTCHA_PRIVATE_KEY": {
-      "description": "Create a Recaptcha account and copy the private key here",
+    "RECAPTCHA_SECRET_KEY": {
+      "description": "Create a Recaptcha account and copy the secret key here",
       "required": true
     },
-    "RECAPTCHA_PUBLIC_KEY": {
-      "description": "Create a Recaptcha account and copy the public key here",
+    "RECAPTCHA_SITE_KEY": {
+      "description": "Create a Recaptcha account and copy the site key here",
       "required": true
     },
     "SECRET_KEY_BASE": {