diff --git a/auth-server-auth-code.md b/auth-server-auth-code.md
index 52948b70..34099c92 100755
--- a/auth-server-auth-code.md
+++ b/auth-server-auth-code.md
@@ -62,7 +62,7 @@ $refreshTokenRepository = new RefreshTokenRepository(); // instance of RefreshTo
 
 $privateKey = 'file://path/to/private.key';
 //$privateKey = new CryptKey('file://path/to/private.key', 'passphrase'); // if private key has a pass phrase
-$publicKey = 'file://path/to/public.key';
+$encryptionKey = 'lxZFUEsBCJ2Yb14IF2ygAHI5N4+ZAUXXaSeeJm6+twsUmIen'; // generate using base64_encode(random_bytes(32))
 
 // Setup the authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer(
@@ -70,7 +70,7 @@ $server = new \League\OAuth2\Server\AuthorizationServer(
     $accessTokenRepository,
     $scopeRepository,
     $privateKey,
-    $publicKey
+    $encryptionKey
 );
 
 $grant = new \League\OAuth2\Server\Grant\AuthCodeGrant(
diff --git a/auth-server-client-credentials.md b/auth-server-client-credentials.md
index 72f2bf8d..f7c7c422 100755
--- a/auth-server-client-credentials.md
+++ b/auth-server-client-credentials.md
@@ -36,7 +36,7 @@ $accessTokenRepository = new AccessTokenRepository(); // instance of AccessToken
 // Path to public and private keys
 $privateKey = 'file://path/to/private.key';
 //$privateKey = new CryptKey('file://path/to/private.key', 'passphrase'); // if private key has a pass phrase
-$publicKey = 'file://path/to/public.key';
+$encryptionKey = 'lxZFUEsBCJ2Yb14IF2ygAHI5N4+ZAUXXaSeeJm6+twsUmIen'; // generate using base64_encode(random_bytes(32))
 
 // Setup the authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer(
@@ -44,7 +44,7 @@ $server = new \League\OAuth2\Server\AuthorizationServer(
     $accessTokenRepository,
     $scopeRepository,
     $privateKey,
-    $publicKey
+    $encryptionKey
 );
 
 // Enable the client credentials grant on the server
diff --git a/auth-server-implicit.md b/auth-server-implicit.md
index 464ced45..376d5018 100755
--- a/auth-server-implicit.md
+++ b/auth-server-implicit.md
@@ -48,7 +48,7 @@ $authCodeRepository = new AuthCodeRepository(); // instance of AuthCodeRepositor
 
 $privateKey = 'file://path/to/private.key';
 //$privateKey = new CryptKey('file://path/to/private.key', 'passphrase'); // if private key has a pass phrase
-$publicKey = 'file://path/to/public.key';
+$encryptionKey = 'lxZFUEsBCJ2Yb14IF2ygAHI5N4+ZAUXXaSeeJm6+twsUmIen'; // generate using base64_encode(random_bytes(32))
 
 // Setup the authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer(
@@ -56,7 +56,7 @@ $server = new \League\OAuth2\Server\AuthorizationServer(
     $accessTokenRepository,
     $scopeRepository,
     $privateKey,
-    $publicKey
+    $encryptionKey
 );
 
 // Enable the implicit grant on the server
diff --git a/auth-server-password.md b/auth-server-password.md
index 69c4bb9d..434a72d6 100755
--- a/auth-server-password.md
+++ b/auth-server-password.md
@@ -43,7 +43,7 @@ $refreshTokenRepository = new RefreshTokenRepository(); // instance of RefreshTo
 // Path to public and private keys
 $privateKey = 'file://path/to/private.key';
 //$privateKey = new CryptKey('file://path/to/private.key', 'passphrase'); // if private key has a pass phrase
-$publicKey = 'file://path/to/public.key';
+$encryptionKey = 'lxZFUEsBCJ2Yb14IF2ygAHI5N4+ZAUXXaSeeJm6+twsUmIen'; // generate using base64_encode(random_bytes(32))
 
 // Setup the authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer(
@@ -51,7 +51,7 @@ $server = new \League\OAuth2\Server\AuthorizationServer(
     $accessTokenRepository,
     $scopeRepository,
     $privateKey,
-    $publicKey
+    $encryptionKey
 );
 
 $grant = new \League\OAuth2\Server\Grant\PasswordGrant(
diff --git a/auth-server-refresh-token.md b/auth-server-refresh-token.md
index 398d2962..e2fa707f 100755
--- a/auth-server-refresh-token.md
+++ b/auth-server-refresh-token.md
@@ -39,7 +39,7 @@ $refreshTokenRepository = new RefreshTokenRepository();
 // Path to public and private keys
 $privateKey = 'file://path/to/private.key';
 //$privateKey = new CryptKey('file://path/to/private.key', 'passphrase'); // if private key has a pass phrase
-$publicKey = 'file://path/to/public.key';
+$encryptionKey = 'lxZFUEsBCJ2Yb14IF2ygAHI5N4+ZAUXXaSeeJm6+twsUmIen'; // generate using base64_encode(random_bytes(32))
 
 // Setup the authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer(
@@ -47,7 +47,7 @@ $server = new \League\OAuth2\Server\AuthorizationServer(
     $accessTokenRepository,
     $scopeRepository,
     $privateKey,
-    $publicKey
+    $encryptionKey
 );
 
 $grant = new \League\OAuth2\Server\Grant\RefreshTokenGrant($refreshTokenRepository);