diff --git a/Change-default-CA-to-ZeroSSL.md b/Change-default-CA-to-ZeroSSL.md
index cca23c7..c4fcd32 100644
--- a/Change-default-CA-to-ZeroSSL.md
+++ b/Change-default-CA-to-ZeroSSL.md
@@ -19,7 +19,7 @@ Q&A:
 
 2. Will I still be able to use letsencrypt then?
 
-    Yes, of cause. you are still free to use any supported CA with providing `--server` parameter.
+    Yes, of course. You are still free to use any supported CA with providing `--server` parameter.
     ```
     acme.sh  --issue  -d example.com --dns dns_cf    --server  letsencrypt
     ```
@@ -46,7 +46,7 @@ Q&A:
     acme.sh --issue  -d example.com  --dns dns_cf
     ```
 
-    The cert will be issued with the defualt CA [ZeroSSL](https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA)
+    The cert will be issued with the default CA [ZeroSSL](https://github.com/acmesh-official/acme.sh/wiki/ZeroSSL.com-CA)
 
     You can also try with letsencrypt:
     ```