diff --git a/docs/source/robots.txt b/docs/source/robots.txt
index a2601e6971..ef5c082bf5 100644
--- a/docs/source/robots.txt
+++ b/docs/source/robots.txt
@@ -5,14 +5,5 @@ Allow: /en/latest/
 Allow: /en/0.19.2/
 Allow: /en/0.19.1/
 Allow: /en/0.19.0/
-Allow: /en/0.18.5/
-Allow: /en/0.18.6/
-Allow: /en/0.18.7/
-Allow: /en/0.18.8/
-Allow: /en/0.18.9/
-Allow: /en/0.18.10/
-Allow: /en/0.18.11/
-Allow: /en/0.18.12/
-Allow: /en/0.18.13/
 Allow: /en/0.18.14/
 Allow: /en/0.17.7/