diff --git a/src/main/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojo.java b/src/main/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojo.java
index 8c44ab56..6cd770fb 100644
--- a/src/main/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojo.java
+++ b/src/main/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojo.java
@@ -49,6 +49,16 @@ public abstract class AbstractCompileMojo extends AbstractGroovySourcesMojo {
      */
     protected static final Version GROOVY_5_0_0_ALPHA1 = new Version(5, 0, 0, "alpha-1");
 
+    /**
+     * Groovy 4.0.11 version.
+     */
+    protected static final Version GROOVY_4_0_21 = new Version(4, 0, 21);
+
+    /**
+     * Groovy 4.0.11 version.
+     */
+    protected static final Version GROOVY_4_0_16 = new Version(4, 0, 16);
+
     /**
      * Groovy 4.0.11 version.
      */
@@ -198,6 +208,11 @@ public abstract class AbstractCompileMojo extends AbstractGroovySourcesMojo {
      *   <li>16</li>
      *   <li>17</li>
      *   <li>18</li>
+     *   <li>19</li>
+     *   <li>20</li>
+     *   <li>21</li>
+     *   <li>22</li>
+     *   <li>23</li>
      * </ul>
      * Using 1.6 (or 6) or 1.7 (or 7) requires Groovy &gt;= 2.1.3.
      * Using 1.8 (or 8) requires Groovy &gt;= 2.3.3.
@@ -213,6 +228,8 @@ public abstract class AbstractCompileMojo extends AbstractGroovySourcesMojo {
      * Using 19 requires Groovy &gt; 4.0.2.
      * Using 20 requires Groovy &gt; 4.0.6.
      * Using 21 requires Groovy &gt; 4.0.11.
+     * Using 22 requires Groovy &gt; 4.0.16.
+     * Using 23 requires Groovy &gt; 4.0.21.
      */
     @Parameter(property = "maven.compiler.target", defaultValue = "1.8")
     protected String targetBytecode;
@@ -509,7 +526,15 @@ protected void verifyGroovyVersionSupportsTargetBytecode() {
             }
         }
 
-        if ("21".equals(targetBytecode)) {
+        if ("23".equals(targetBytecode)) {
+            if (groovyOlderThan(GROOVY_4_0_21)) {
+                throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_21 + " or newer.");
+            }
+        } else if ("22".equals(targetBytecode)) {
+            if (groovyOlderThan(GROOVY_4_0_16)) {
+                throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_16 + " or newer.");
+            }
+        } else if ("21".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_11)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_11 + " or newer.");
             }
diff --git a/src/main/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojo.java b/src/main/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojo.java
index dc3f5142..9ba55b71 100644
--- a/src/main/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojo.java
+++ b/src/main/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojo.java
@@ -51,6 +51,16 @@ public abstract class AbstractGenerateStubsMojo extends AbstractGroovyStubSource
      */
     protected static final Version GROOVY_5_0_0_ALPHA1 = new Version(5, 0, 0, "alpha-1");
 
+    /**
+     * Groovy 4.0.11 version.
+     */
+    protected static final Version GROOVY_4_0_21 = new Version(4, 0, 21);
+
+    /**
+     * Groovy 4.0.11 version.
+     */
+    protected static final Version GROOVY_4_0_16 = new Version(4, 0, 16);
+
     /**
      * Groovy 4.0.11 version.
      */
@@ -195,6 +205,11 @@ public abstract class AbstractGenerateStubsMojo extends AbstractGroovyStubSource
      *   <li>16</li>
      *   <li>17</li>
      *   <li>18</li>
+     *   <li>19</li>
+     *   <li>20</li>
+     *   <li>21</li>
+     *   <li>22</li>
+     *   <li>23</li>
      * </ul>
      * Using 1.6 (or 6) or 1.7 (or 7) requires Groovy &gt;= 2.1.3.
      * Using 1.8 (or 8) requires Groovy &gt;= 2.3.3.
@@ -210,6 +225,8 @@ public abstract class AbstractGenerateStubsMojo extends AbstractGroovyStubSource
      * Using 19 requires Groovy &gt; 4.0.2.
      * Using 20 requires Groovy &gt; 4.0.6.
      * Using 21 requires Groovy &gt; 4.0.11.
+     * Using 22 requires Groovy &gt; 4.0.16.
+     * Using 23 requires Groovy &gt; 4.0.21.
      *
      * @since 1.0-beta-3
      */
@@ -430,7 +447,15 @@ protected void verifyGroovyVersionSupportsTargetBytecode() {
             }
         }
 
-        if ("21".equals(targetBytecode)) {
+        if ("23".equals(targetBytecode)) {
+            if (groovyOlderThan(GROOVY_4_0_21)) {
+                throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_21 + " or newer.");
+            }
+        } else if ("22".equals(targetBytecode)) {
+            if (groovyOlderThan(GROOVY_4_0_16)) {
+                throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_16 + " or newer.");
+            }
+        } else if ("21".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_11)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_11 + " or newer.");
             }
diff --git a/src/test/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojoTest.java b/src/test/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojoTest.java
index b2b69271..f2e643e9 100644
--- a/src/test/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojoTest.java
+++ b/src/test/java/org/codehaus/gmavenplus/mojo/AbstractCompileMojoTest.java
@@ -402,6 +402,13 @@ public void testJava20WithSupportedGroovy() {
         testMojo.verifyGroovyVersionSupportsTargetBytecode();
     }
 
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava21WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.10");
+        testMojo.targetBytecode = "21";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
     @Test
     public void testJava21WithSupportedGroovy() {
         testMojo = new TestMojo("4.0.11");
@@ -409,6 +416,34 @@ public void testJava21WithSupportedGroovy() {
         testMojo.verifyGroovyVersionSupportsTargetBytecode();
     }
 
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava22WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.15");
+        testMojo.targetBytecode = "22";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test
+    public void testJava22WithSupportedGroovy() {
+        testMojo = new TestMojo("4.0.16");
+        testMojo.targetBytecode = "22";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava23WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.210");
+        testMojo.targetBytecode = "23";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test
+    public void testJava23WithSupportedGroovy() {
+        testMojo = new TestMojo("4.0.21");
+        testMojo.targetBytecode = "23";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
     @Test(expected = IllegalArgumentException.class)
     public void testUnrecognizedJava() {
         testMojo = new TestMojo("2.1.2");
diff --git a/src/test/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojoTest.java b/src/test/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojoTest.java
index f4a9897a..133bdd3a 100644
--- a/src/test/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojoTest.java
+++ b/src/test/java/org/codehaus/gmavenplus/mojo/AbstractGenerateStubsMojoTest.java
@@ -432,6 +432,13 @@ public void testJava20WithSupportedGroovy() {
         testMojo.verifyGroovyVersionSupportsTargetBytecode();
     }
 
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava21WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.10");
+        testMojo.targetBytecode = "21";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
     @Test
     public void testJava21WithSupportedGroovy() {
         testMojo = new TestMojo("4.0.11");
@@ -439,6 +446,34 @@ public void testJava21WithSupportedGroovy() {
         testMojo.verifyGroovyVersionSupportsTargetBytecode();
     }
 
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava22WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.15");
+        testMojo.targetBytecode = "22";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test
+    public void testJava22WithSupportedGroovy() {
+        testMojo = new TestMojo("4.0.16");
+        testMojo.targetBytecode = "22";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testJava23WithUnsupportedGroovy() {
+        testMojo = new TestMojo("4.0.210");
+        testMojo.targetBytecode = "23";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
+    @Test
+    public void testJava23WithSupportedGroovy() {
+        testMojo = new TestMojo("4.0.21");
+        testMojo.targetBytecode = "23";
+        testMojo.verifyGroovyVersionSupportsTargetBytecode();
+    }
+
     @Test(expected = IllegalArgumentException.class)
     public void testUnrecognizedJava() {
         testMojo = new TestMojo("2.1.2");