diff --git a/pom.xml b/pom.xml
index 37f1723..f1b981b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,17 +69,17 @@
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-core_2.12</artifactId>
-            <version>2.4.3</version>
+            <version>3.5.6</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-sql_2.12</artifactId>
-            <version>2.4.3</version>
+            <version>3.5.6</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-mllib_2.12</artifactId>
-            <version>2.4.3</version>
+            <version>3.5.6</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
@@ -96,12 +96,12 @@
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-stdlib-jdk8</artifactId>
-            <version>${kotlin.version}</version>
+            <version>1.6.20</version>
         </dependency>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-test-junit</artifactId>
-            <version>${kotlin.version}</version>
+            <version>1.6.20</version>
             <scope>test</scope>
         </dependency>