diff --git a/installation.md b/installation.md
index 83286be4..c96a447c 100755
--- a/installation.md
+++ b/installation.md
@@ -58,7 +58,7 @@ The `AuthorizationServer` accepts two kinds of encryption keys, a `string` passw
 
 ### `string` password
 
-A `string` password can be of variable strength depending on the password used. To turn it into a strong encryption key the [PBKDF2](https://en.wikipedia.org/wiki/PBKDF2) key derivation function is used.
+A `string` password can vary in strength depending on the password chosen. To turn it into a strong encryption key the [PBKDF2](https://en.wikipedia.org/wiki/PBKDF2) key derivation function is used.
 This function derives an encryption key from a password and is slow by design. It uses a lot of CPU resources for a fraction of a second, applying key stretching to the password to reduce vulnerability to brute force attacks.
 
 To generate a `string` password for the `AuthorizationServer`, you can run the following command in the terminal: