diff --git a/docs/rules/0134/request-mask-required.md b/docs/rules/0134/request-mask-required.md
index 130afe46..71f2d025 100644
--- a/docs/rules/0134/request-mask-required.md
+++ b/docs/rules/0134/request-mask-required.md
@@ -11,7 +11,7 @@ redirect_from:
 # Update methods: Mask field
 
 This rule enforces that all `Update` standard methods have a field in the
-request message for the field mask, as mandated in [AIP-134][].
+request message for the field mask, as recommended in [AIP-134][].
 
 ## Details