diff --git a/Security-Overview.md b/Security-Overview.md
index ba9234c..37a7158 100644
--- a/Security-Overview.md
+++ b/Security-Overview.md
@@ -13,10 +13,10 @@ Server | Service | Note
 master | gRPC | secured by mutual TLS
 volume | gRPC | secured by mutual TLS
 filer  | gRPC | secured by mutual TLS
-master | http REST | "weed master -disableHttp", disable http operations, only gRPC operations are allowed.
-filer  | http REST | "weed filer -disableHttp", disable http operations, only gRPC operations are allowed.
-volume | http REST write | set `jwt.signing.key` in `security.toml` in master and volume servers to check token for write operations
-volume | http REST read | unprotected, but url is not guessable
+master | http | "weed master -disableHttp", disable http operations, only gRPC operations are allowed.
+filer  | http | "weed filer -disableHttp", disable http operations, only gRPC operations are allowed.
+volume | http write | set `jwt.signing.key` in `security.toml` in master and volume servers to check token for write operations
+volume | http read | unprotected, but url is not guessable
 
 # Generate `security.toml` file