diff --git a/README.md b/README.md
index badeabbc..4e1522a0 100644
--- a/README.md
+++ b/README.md
@@ -910,6 +910,7 @@ can be found in the [TraceTronic Knowledge Base](https://kb.tracetronic.com/disp
 
 | Version |    latest - 2.39     |    2.38 - 2.26     |    2.25 - 2.23    |    2.22 - 2.19    |    2.18 - 2.15    |       2.15        |    2.14 - 2.13    |    2.12 - 2.8     |     2.7 - 2.5     |     2.4 - 2.2     |     2.1 - 2.0     |
 |:-------:|:--------------------:|:------------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|:-----------------:|
+| 2023.3  |  :heavy_check_mark:  |        :x:         |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |
 | 2023.2  |  :heavy_check_mark:  |        :x:         |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |
 | 2023.1  |  :heavy_check_mark:  |        :x:         |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |
 | 2022.4  |  :heavy_check_mark:  | :heavy_check_mark: |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |        :x:        |
diff --git a/src/main/java/de/tracetronic/jenkins/plugins/ecutest/ETPlugin.java b/src/main/java/de/tracetronic/jenkins/plugins/ecutest/ETPlugin.java
index 1bd984a6..90168a97 100644
--- a/src/main/java/de/tracetronic/jenkins/plugins/ecutest/ETPlugin.java
+++ b/src/main/java/de/tracetronic/jenkins/plugins/ecutest/ETPlugin.java
@@ -35,7 +35,7 @@ public class ETPlugin {
     /**
      * Defines the maximum allowed ECU-TEST version supported by this plugin.
      */
-    public static final ToolVersion ET_MAX_VERSION = new ToolVersion(2023, 2, 0);
+    public static final ToolVersion ET_MAX_VERSION = new ToolVersion(2023, 3, 0);
 
     /**
      * Defines the minimum TEST-GUIDE version supported by this plugin.