diff --git a/README.md b/README.md
index 42d67f8..6db1e89 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ The required components of a system that supports CEL are:
 
 For use cases which require persistence or cross-process communcation, it is
 highly recommended to serialize the type-checked expression as a protocol
-buffer. The CEL team will maintains canonical protocol buffers for ASTs and
+buffer. The CEL team will maintain canonical protocol buffers for ASTs and
 will keep these versions identical and wire-compatible in perpetuity:
 
 *  [CEL canonical](https://github.com/google/cel-spec/tree/master/proto/cel/expr)