diff --git a/README.md b/README.md
index 98c86ca..b235e0b 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ on Windows, use `Git Bash` as system administrator.
 
 ## Manual
 ```
-jssl v1.2
+jssl v1.3
 Install trusted certificate and check SSL handshake against java keystore.
 Usage: jssl <host> <operation> [-p|--port <arg>] [-a|--alias <arg>] [-h|--help] [-v|--version]
 	<host>: without https:// and port, eg. google.com
@@ -59,11 +59,11 @@ $ jssl <URL> install
 
 ## Supports
 
-| |Java 1.8 | Java 11  |  Java 17   |
-|---|---|---|---|
-| Linux | :heavy_check_mark:  | :heavy_check_mark:  |  :heavy_check_mark:  
-| MacOS  | :heavy_check_mark:  |  :heavy_check_mark: | :heavy_check_mark:  |
-| Windows | :heavy_check_mark:  |  :heavy_check_mark: | :heavy_check_mark:  |
+|         | Java 1.8           | Java 11            | Java 17            |
+|---------|--------------------|--------------------|--------------------|
+| Linux   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
+| MacOS   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
+| Windows | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
 
 ## Requirements
 
diff --git a/src/jssl b/src/jssl
index 4f4f751..2f14738 100755
--- a/src/jssl
+++ b/src/jssl
@@ -1,13 +1,13 @@
 #!/bin/bash
-### java-ssl-tools (jssl) v1.2
-jssl_version="v1.2"
+### java-ssl-tools (jssl) v1.3
+jssl_version="v1.3"
 JVM_VERSION=$(java -version 2>&1 | head -n 1)
 
 
-SUDO="sudo"
-if ! command -v sudo &> /dev/null
+SUDO=""
+if command -v sudo &> /dev/null
 then
-    SUDO=""
+    SUDO="sudo"
 fi
 
 ### To keep the script standalone, source is divided into parts