diff --git a/.gitignore b/.gitignore
index 261a3274..10fae6f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,5 @@ target
 .gradle
 build
 
-api/openapi.yaml
\ No newline at end of file
+api/openapi.yaml
+node_modules
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 267f709e..a8cece52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,14 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 None
 
+<a name="6.1.2"></a>
+
+## [6.1.2] - 2025-02-18
+
+### Changed
+
+- Make statusCallbackURL property mandatory for CreateConference
+
 <a name="6.1.1"></a>
 
 ## [6.1.1] - 2025-02-05
diff --git a/README.md b/README.md
index 089056e9..693fc335 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ Add this dependency to your project's POM:
 <dependency>
   <groupId>com.github.freeclimbapi</groupId>
   <artifactId>freeclimb-java-client</artifactId>
-  <version>6.1.1</version>
+  <version>6.1.2</version>
   <scope>compile</scope>
 </dependency>
 ```
@@ -56,7 +56,7 @@ Add this dependency to your project's build file:
   }
 
   dependencies {
-     implementation "com.github.freeclimbapi:freeclimb-java-client:6.1.1"
+     implementation "com.github.freeclimbapi:freeclimb-java-client:6.1.2"
      implementation("com.squareup.okhttp3:okhttp:4.9.3")
      implementation("com.squareup.okhttp3:logging-interceptor:4.9.3")
   }
@@ -72,7 +72,7 @@ mvn clean package
 
 Then manually install the following JARs:
 
-* `target/freeclimb-java-client-6.1.1.jar`
+* `target/freeclimb-java-client-6.1.2.jar`
 * `target/lib/*.jar`
 
 ## Getting Started
diff --git a/build.gradle b/build.gradle
index afe949a5..70500cd8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'java'
 apply plugin: 'com.diffplug.spotless'
 
 group = 'com.github.freeclimbapi'
-version = '6.1.1'
+version = '6.1.2'
 
 buildscript {
     repositories {
@@ -119,7 +119,7 @@ dependencies {
     implementation "jakarta.annotation:jakarta.annotation-api:$jakarta_annotation_version"
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-core:3.12.4'
-    implementation 'org.json:json:20171018'
+    implementation 'org.json:json:20231013'
 }
 
 javadoc {
diff --git a/build.sbt b/build.sbt
index a724b481..b4ec2543 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ lazy val root = (project in file(".")).
   settings(
     organization := "com.github.freeclimbapi",
     name := "freeclimb-java-client",
-    version := "6.1.1",
+    version := "6.1.2",
     scalaVersion := "2.11.4",
     scalacOptions ++= Seq("-feature"),
     javacOptions in compile ++= Seq("-Xlint:deprecation"),
diff --git a/docs/CreateConferenceRequest.md b/docs/CreateConferenceRequest.md
index 9b35428d..8beb2b59 100644
--- a/docs/CreateConferenceRequest.md
+++ b/docs/CreateConferenceRequest.md
@@ -11,7 +11,7 @@ Name | Type | Description | Notes
 **playBeep** | **PlayBeep** |  |  [optional]
 **record** | **Boolean** | Setting to &#x60;true&#x60; records the entire Conference. |  [optional]
 **waitUrl** | **URI** | If specified, a URL for the audio file that provides custom hold music for the Conference when it is in the populated state. Otherwise, FreeClimb uses a system default audio file. This is always fetched using HTTP GET and is fetched just once &amp;mdash; when the Conference is created. |  [optional]
-**statusCallbackUrl** | **URI** | This URL is invoked when the status of the Conference changes. For more information, see **statusCallbackUrl** (below). |  [optional]
+**statusCallbackUrl** | **URI** | This URL is invoked when the status of the Conference changes. For more information, see **statusCallbackUrl** (below). | 
 
 
 
diff --git a/openapi.json b/openapi.json
index 0302013f..e8f5da9d 100644
--- a/openapi.json
+++ b/openapi.json
@@ -3658,6 +3658,9 @@
       },
       "CreateConferenceRequest": {
         "type": "object",
+        "required": [
+          "statusCallbackUrl"
+        ],
         "properties": {
           "alias": {
             "type": "string",
diff --git a/package.json b/package.json
index c6f6aac1..f06550a9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
-    "@stoplight/prism-cli": "5.6.0"
+    "@stoplight/prism-cli": "5.6.0",
+    "jsonpath-plus": "^10.3.0"
   },
   "resolutions": {
     "@stoplight/json": "3.20.0",
diff --git a/pom.xml b/pom.xml
index fe4291fa..d9ace901 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <artifactId>freeclimb-java-client</artifactId>
     <packaging>jar</packaging>
     <name>freeclimb-java-client</name>
-    <version>6.1.1</version>
+    <version>6.1.2</version>
     <url>https://github.com/freeclimbapi/java-sdk</url>
     <description>FreeClimb Java Client</description>
     <scm>
diff --git a/src/main/java/com/github/freeclimbapi/ApiClient.java b/src/main/java/com/github/freeclimbapi/ApiClient.java
index dbf25770..00f8266c 100644
--- a/src/main/java/com/github/freeclimbapi/ApiClient.java
+++ b/src/main/java/com/github/freeclimbapi/ApiClient.java
@@ -121,7 +121,7 @@ private void init() {
         json = new JSON();
 
         // Set default User-Agent.
-        setUserAgent("OpenAPI-Generator/6.1.1/java");
+        setUserAgent("OpenAPI-Generator/6.1.2/java");
 
         authentications = new HashMap<String, Authentication>();
     }
diff --git a/src/main/java/com/github/freeclimbapi/models/CreateConferenceRequest.java b/src/main/java/com/github/freeclimbapi/models/CreateConferenceRequest.java
index c9944592..0c345823 100644
--- a/src/main/java/com/github/freeclimbapi/models/CreateConferenceRequest.java
+++ b/src/main/java/com/github/freeclimbapi/models/CreateConferenceRequest.java
@@ -159,8 +159,9 @@ public CreateConferenceRequest statusCallbackUrl(URI statusCallbackUrl) {
      *
      * @return statusCallbackUrl
      */
-    @javax.annotation.Nullable
+    @javax.annotation.Nonnull
     @ApiModelProperty(
+            required = true,
             value =
                     "This URL is invoked when the status of the Conference changes. For more"
                             + " information, see **statusCallbackUrl** (below).")
diff --git a/yarn.lock b/yarn.lock
index b8d243ad..962ed376 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -22,11 +22,21 @@
   resolved "https://registry.yarnpkg.com/@jsep-plugin/assignment/-/assignment-1.2.1.tgz#07277bdd7862451a865d391e2142efba33f46c9b"
   integrity sha512-gaHqbubTi29aZpVbBlECRpmdia+L5/lh2BwtIJTmtxdbecEyyX/ejAOg7eQDGNvGOUmPY7Z2Yxdy9ioyH/VJeA==
 
+"@jsep-plugin/assignment@^1.3.0":
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/@jsep-plugin/assignment/-/assignment-1.3.0.tgz#fcfc5417a04933f7ceee786e8ab498aa3ce2b242"
+  integrity sha512-VVgV+CXrhbMI3aSusQyclHkenWSAm95WaiKrMxRFam3JSUiIaQjoMIw2sEs/OX4XifnqeQUN4DYbJjlA8EfktQ==
+
 "@jsep-plugin/regex@^1.0.3":
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/@jsep-plugin/regex/-/regex-1.0.3.tgz#3aeaa2e5fa45d89de116aeafbfa41c95935b7f6d"
   integrity sha512-XfZgry4DwEZvSFtS/6Y+R48D7qJYJK6R9/yJFyUFHCIUMEEHuJ4X95TDgJp5QkmzfLYvapMPzskV5HpIDrREug==
 
+"@jsep-plugin/regex@^1.0.4":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@jsep-plugin/regex/-/regex-1.0.4.tgz#cb2fc423220fa71c609323b9ba7f7d344a755fcc"
+  integrity sha512-q7qL4Mgjs1vByCaTnDFcBnV9HS7GVPJX5vyVoCgZHNSC9rjwIlmbXG5sUuorR5ndfHAIlJ8pVStxvjXHbNvtUg==
+
 "@stoplight/http-spec@^7.0.2", "@stoplight/http-spec@^7.0.3":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@stoplight/http-spec/-/http-spec-7.1.0.tgz#516fec5f4b08cc93dadfb4969a6f9616165b0553"
@@ -721,6 +731,11 @@ jsep@^1.3.9:
   resolved "https://registry.yarnpkg.com/jsep/-/jsep-1.3.9.tgz#8ce42df80ee9c1b39e52d0dd062a465342f35440"
   integrity sha512-i1rBX5N7VPl0eYb6+mHNp52sEuaS2Wi8CDYx1X5sn9naevL78+265XJqy1qENEk7mRKwS06NHpUqiBwR7qeodw==
 
+jsep@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/jsep/-/jsep-1.4.0.tgz#19feccbfa51d8a79f72480b4b8e40ce2e17152f0"
+  integrity sha512-B7qPcEVE3NVkmSJbaYxvv4cHkVW7DQsZz13pUMrfS8z8Q/BuShN+gcTXrUlPiGqM2/t/EEaI030bpxMqY8gMlw==
+
 json-parse-better-errors@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
@@ -783,6 +798,15 @@ jsonpath-plus@^10.0.0, jsonpath-plus@^7.2.0:
     "@jsep-plugin/regex" "^1.0.3"
     jsep "^1.3.9"
 
+jsonpath-plus@^10.3.0:
+  version "10.3.0"
+  resolved "https://registry.yarnpkg.com/jsonpath-plus/-/jsonpath-plus-10.3.0.tgz#59e22e4fa2298c68dfcd70659bb47f0cad525238"
+  integrity sha512-8TNmfeTCk2Le33A3vRRwtuworG/L5RrgMvdjhKZxvyShO+mBu2fP50OWUjRLNtvw344DdDarFh9buFAZs5ujeA==
+  dependencies:
+    "@jsep-plugin/assignment" "^1.3.0"
+    "@jsep-plugin/regex" "^1.0.4"
+    jsep "^1.4.0"
+
 liquid-json@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/liquid-json/-/liquid-json-0.3.1.tgz#9155a18136d8a6b2615e5f16f9a2448ab6b50eea"