diff --git a/README.md b/README.md
index 6efcbe047c..c13f399abb 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ The OpenAPI Specification has undergone several revisions since initial creation
 
 Swagger core Version      | Release Date | OpenAPI Spec compatibility | Notes                                                                                                             | Status
 ------------------------- | ------------ | -------------------------- |-------------------------------------------------------------------------------------------------------------------| ----
-2.2.20 (**current stable**)| 2023-12-19   | 3.x           | [tag v2.2.20](https://github.com/swagger-api/swagger-core/tree/v2.2.20)                                           | Supported
+2.2.20                     | 2023-12-19   | 3.x           | [tag v2.2.20](https://github.com/swagger-api/swagger-core/tree/v2.2.20)                                           | Supported
 2.2.19                     | 2023-11-10   | 3.x           | [tag v2.2.19](https://github.com/swagger-api/swagger-core/tree/v2.2.19)                                           | Supported
 2.2.18                     | 2023-10-25   | 3.x           | [tag v2.2.18](https://github.com/swagger-api/swagger-core/tree/v2.2.18)                                           | Supported
 2.2.17                     | 2023-10-12   | 3.x           | [tag v2.2.17](https://github.com/swagger-api/swagger-core/tree/v2.2.17)                                           | Supported
@@ -113,7 +113,7 @@ You need the following installed and available in your $PATH:
 * Jackson 2.4.5 or greater
 
 
-### To build from source (currently 2.2.21-SNAPSHOT)
+### To build from source (currently 2.2.22-SNAPSHOT)
 ```
 # first time building locally
 mvn -N
diff --git a/modules/swagger-annotations/pom.xml b/modules/swagger-annotations/pom.xml
index eece698af6..4b25dda3f3 100644
--- a/modules/swagger-annotations/pom.xml
+++ b/modules/swagger-annotations/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-core/pom.xml b/modules/swagger-core/pom.xml
index 30e285f00f..2a5ec7f43d 100644
--- a/modules/swagger-core/pom.xml
+++ b/modules/swagger-core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-eclipse-transformer-maven-plugin/pom.xml b/modules/swagger-eclipse-transformer-maven-plugin/pom.xml
index 07b26c76ce..26baa34366 100644
--- a/modules/swagger-eclipse-transformer-maven-plugin/pom.xml
+++ b/modules/swagger-eclipse-transformer-maven-plugin/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-gradle-plugin/README.md b/modules/swagger-gradle-plugin/README.md
index 928e32fc2e..c4cfe96da4 100644
--- a/modules/swagger-gradle-plugin/README.md
+++ b/modules/swagger-gradle-plugin/README.md
@@ -26,7 +26,7 @@ Alternatively provide as value a classpath with the following dependencies (repl
 
 ```
 plugins {
-  id "io.swagger.core.v3.swagger-gradle-plugin" version "2.2.20"
+  id "io.swagger.core.v3.swagger-gradle-plugin" version "2.2.21"
 }
 ```
 ### Gradle 1.x and 2.0
@@ -43,7 +43,7 @@ buildscript {
     }
   }
   dependencies {
-    classpath "io.swagger.core.v3:swagger-gradle-plugin:2.2.20"
+    classpath "io.swagger.core.v3:swagger-gradle-plugin:2.2.21"
   }
 }
 
diff --git a/modules/swagger-gradle-plugin/gradle.properties b/modules/swagger-gradle-plugin/gradle.properties
index cf6a3b28f9..2e474358d3 100644
--- a/modules/swagger-gradle-plugin/gradle.properties
+++ b/modules/swagger-gradle-plugin/gradle.properties
@@ -1,2 +1,2 @@
-version=2.2.21-SNAPSHOT
+version=2.2.21
 jettyVersion=9.4.53.v20231009
diff --git a/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/SwaggerPlugin.java b/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/SwaggerPlugin.java
index 68bed8e4bb..472b7a96e3 100644
--- a/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/SwaggerPlugin.java
+++ b/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/SwaggerPlugin.java
@@ -16,7 +16,7 @@ public void apply(Project project) {
         config.defaultDependencies(new Action<DependencySet>() {
             public void execute(DependencySet dependencies) {
                 dependencies.add(project.getDependencies().create("org.apache.commons:commons-lang3:3.12.0"));
-                dependencies.add(project.getDependencies().create("io.swagger.core.v3:swagger-jaxrs2:2.2.21-SNAPSHOT"));
+                dependencies.add(project.getDependencies().create("io.swagger.core.v3:swagger-jaxrs2:2.2.21"));
                 dependencies.add(project.getDependencies().create("javax.ws.rs:javax.ws.rs-api:2.1"));
                 dependencies.add(project.getDependencies().create("javax.servlet:javax.servlet-api:3.1.0"));
             }
diff --git a/modules/swagger-gradle-plugin/src/test/java/io/swagger/v3/plugins/gradle/SwaggerResolveTest.java b/modules/swagger-gradle-plugin/src/test/java/io/swagger/v3/plugins/gradle/SwaggerResolveTest.java
index 6fd5333cf2..874f14e43b 100644
--- a/modules/swagger-gradle-plugin/src/test/java/io/swagger/v3/plugins/gradle/SwaggerResolveTest.java
+++ b/modules/swagger-gradle-plugin/src/test/java/io/swagger/v3/plugins/gradle/SwaggerResolveTest.java
@@ -81,7 +81,7 @@ public void testSwaggerResolveTask() throws IOException {
                 "    mavenCentral()\n" +
                 "}\n" +
                 "dependencies {  \n" +
-                "    implementation 'io.swagger.core.v3:swagger-jaxrs2:2.2.21-SNAPSHOT'\n" +
+                "    implementation 'io.swagger.core.v3:swagger-jaxrs2:2.2.21'\n" +
                 "    implementation 'javax.ws.rs:javax.ws.rs-api:2.1'\n" +
                 "    implementation 'javax.servlet:javax.servlet-api:3.1.0'\n" +
                 "    testImplementation 'com.github.tomakehurst:wiremock:2.27.2'\n" +
@@ -154,7 +154,7 @@ public void testSwaggerResolveWithOAS31OptionTask() throws IOException {
                 "    mavenCentral()\n" +
                 "}\n" +
                 "dependencies {  \n" +
-                "    implementation 'io.swagger.core.v3:swagger-jaxrs2:2.2.21-SNAPSHOT'\n" +
+                "    implementation 'io.swagger.core.v3:swagger-jaxrs2:2.2.21'\n" +
                 "    implementation 'javax.ws.rs:javax.ws.rs-api:2.1'\n" +
                 "    implementation 'javax.servlet:javax.servlet-api:3.1.0'\n" +
                 "    testImplementation 'com.github.tomakehurst:wiremock:2.27.2'\n" +
diff --git a/modules/swagger-integration/pom.xml b/modules/swagger-integration/pom.xml
index 27e5445d7a..3ece6983aa 100644
--- a/modules/swagger-integration/pom.xml
+++ b/modules/swagger-integration/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>io.swagger.core.v3</groupId>
 		<artifactId>swagger-project</artifactId>
-		<version>2.2.21-SNAPSHOT</version>
+		<version>2.2.21</version>
 		<relativePath>../..</relativePath>
 	</parent>
 	<artifactId>swagger-integration</artifactId>
diff --git a/modules/swagger-jaxrs2-servlet-initializer-v2/pom.xml b/modules/swagger-jaxrs2-servlet-initializer-v2/pom.xml
index ff4992c6fc..732b982f7a 100644
--- a/modules/swagger-jaxrs2-servlet-initializer-v2/pom.xml
+++ b/modules/swagger-jaxrs2-servlet-initializer-v2/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>swagger-project</artifactId>
         <groupId>io.swagger.core.v3</groupId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-jaxrs2-servlet-initializer/pom.xml b/modules/swagger-jaxrs2-servlet-initializer/pom.xml
index 7276104e16..4f4a1fcfd5 100644
--- a/modules/swagger-jaxrs2-servlet-initializer/pom.xml
+++ b/modules/swagger-jaxrs2-servlet-initializer/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>swagger-project</artifactId>
         <groupId>io.swagger.core.v3</groupId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-jaxrs2/pom.xml b/modules/swagger-jaxrs2/pom.xml
index 4193331029..81114dcdac 100644
--- a/modules/swagger-jaxrs2/pom.xml
+++ b/modules/swagger-jaxrs2/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>swagger-project</artifactId>
         <groupId>io.swagger.core.v3</groupId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../../</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-maven-plugin/README.md b/modules/swagger-maven-plugin/README.md
index 44ca25bbab..1a1c1a2c7a 100644
--- a/modules/swagger-maven-plugin/README.md
+++ b/modules/swagger-maven-plugin/README.md
@@ -22,7 +22,7 @@ Both `javax` and `jakarta` examples are provided below
             <plugin>
                 <groupId>io.swagger.core.v3</groupId>
                 <artifactId>swagger-maven-plugin</artifactId>
-                <version>2.2.20</version>
+                <version>2.2.21</version>
                 <configuration>
                     <outputFileName>openapi</outputFileName>
                     <outputPath>${project.build.directory}/generatedtest</outputPath>
@@ -47,7 +47,7 @@ Both `javax` and `jakarta` examples are provided below
         <dependency>
             <groupId>io.swagger.core.v3</groupId>
             <artifactId>swagger-jaxrs2</artifactId>
-            <version>2.2.20</version>
+            <version>2.2.21</version>
         </dependency>
 
         <dependency>
@@ -73,7 +73,7 @@ Both `javax` and `jakarta` examples are provided below
             <plugin>
                 <groupId>io.swagger.core.v3</groupId>
                 <artifactId>swagger-maven-plugin-jakarta</artifactId>
-                <version>2.2.20</version>
+                <version>2.2.21</version>
                 <configuration>
                     <outputFileName>openapi</outputFileName>
                     <outputPath>${project.build.directory}/generatedtest</outputPath>
@@ -98,7 +98,7 @@ Both `javax` and `jakarta` examples are provided below
         <dependency>
             <groupId>io.swagger.core.v3</groupId>
             <artifactId>swagger-jaxrs2-jakarta</artifactId>
-            <version>2.2.20</version>
+            <version>2.2.21</version>
         </dependency>
 
         <dependency>
@@ -126,7 +126,7 @@ Both `javax` and `jakarta` examples are provided below
             <plugin>
                 <groupId>io.swagger.core.v3</groupId>
                 <artifactId>swagger-maven-plugin</artifactId>
-                <version>2.2.20</version>
+                <version>2.2.21</version>
                 <configuration>
                     <outputFileName>openapi</outputFileName>
                     <outputPath>${project.build.directory}/generatedtest</outputPath>
@@ -155,7 +155,7 @@ Both `javax` and `jakarta` examples are provided below
             <plugin>
                 <groupId>io.swagger.core.v3</groupId>
                 <artifactId>swagger-maven-plugin-jakarta</artifactId>
-                <version>2.2.20</version>
+                <version>2.2.21</version>
                 <configuration>
                     <outputFileName>openapi</outputFileName>
                     <outputPath>${project.build.directory}/generatedtest</outputPath>
diff --git a/modules/swagger-maven-plugin/pom.xml b/modules/swagger-maven-plugin/pom.xml
index a691e08b0c..b95a342881 100644
--- a/modules/swagger-maven-plugin/pom.xml
+++ b/modules/swagger-maven-plugin/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-models/pom.xml b/modules/swagger-models/pom.xml
index 9416d48034..8d99cedf29 100644
--- a/modules/swagger-models/pom.xml
+++ b/modules/swagger-models/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-annotations-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-annotations-jakarta/pom.xml
index 8499e0073c..6b6622873b 100644
--- a/modules/swagger-project-jakarta/modules/swagger-annotations-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-annotations-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-core-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-core-jakarta/pom.xml
index 15d2f0ab89..34bb15cf6f 100644
--- a/modules/swagger-project-jakarta/modules/swagger-core-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-core-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-integration-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-integration-jakarta/pom.xml
index 88bf860caf..b4005f3f7d 100644
--- a/modules/swagger-project-jakarta/modules/swagger-integration-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-integration-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-jakarta/pom.xml
index c1b35d81d7..6934ad59e9 100644
--- a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-jakarta/pom.xml
index 30284f7385..3381b3b21f 100644
--- a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-v2-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-v2-jakarta/pom.xml
index 1cf5b4bcca..4145d844d4 100644
--- a/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-v2-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-jaxrs2-servlet-initializer-v2-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-maven-plugin-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-maven-plugin-jakarta/pom.xml
index 2f1ab9219b..5e20776194 100644
--- a/modules/swagger-project-jakarta/modules/swagger-maven-plugin-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-maven-plugin-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/modules/swagger-models-jakarta/pom.xml b/modules/swagger-project-jakarta/modules/swagger-models-jakarta/pom.xml
index 113ac83380..8b2163e89d 100644
--- a/modules/swagger-project-jakarta/modules/swagger-models-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/modules/swagger-models-jakarta/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.core.v3</groupId>
         <artifactId>swagger-project-jakarta</artifactId>
-        <version>2.2.21-SNAPSHOT</version>
+        <version>2.2.21</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-project-jakarta/pom.xml b/modules/swagger-project-jakarta/pom.xml
index dc51115e9a..d8e9961554 100644
--- a/modules/swagger-project-jakarta/pom.xml
+++ b/modules/swagger-project-jakarta/pom.xml
@@ -6,7 +6,7 @@
     <packaging>pom</packaging>
     <name>swagger-project-jakarta</name>
     <description>swagger-project-jakarta</description>
-    <version>2.2.21-SNAPSHOT</version>
+    <version>2.2.21</version>
     <url>https://github.com/swagger-api/swagger-core</url>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-core.git</connection>
diff --git a/pom.xml b/pom.xml
index 95f4b263a4..bb24107944 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
     <packaging>pom</packaging>
     <name>swagger-project</name>
     <description>swagger-project</description>
-    <version>2.2.21-SNAPSHOT</version>
+    <version>2.2.21</version>
     <url>https://github.com/swagger-api/swagger-core</url>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-core.git</connection>