diff --git a/pulsar-functions/api-java/pom.xml b/pulsar-functions/api-java/pom.xml
index c28159bed2421..6f22762ed6c44 100644
--- a/pulsar-functions/api-java/pom.xml
+++ b/pulsar-functions/api-java/pom.xml
@@ -55,6 +55,10 @@
       <version>${project.version}</version>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>io.github.pixee</groupId>
+      <artifactId>java-security-toolkit</artifactId>
+    </dependency>
 
   </dependencies>
 
diff --git a/pulsar-functions/api-java/src/main/java/org/apache/pulsar/functions/api/utils/JavaSerDe.java b/pulsar-functions/api-java/src/main/java/org/apache/pulsar/functions/api/utils/JavaSerDe.java
index c145179abb42b..fe99c4b14f9e0 100644
--- a/pulsar-functions/api-java/src/main/java/org/apache/pulsar/functions/api/utils/JavaSerDe.java
+++ b/pulsar-functions/api-java/src/main/java/org/apache/pulsar/functions/api/utils/JavaSerDe.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.functions.api.utils;
 
+import io.github.pixee.security.ObjectInputFilters;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.ObjectInputStream;
@@ -60,6 +61,7 @@ public Object deserialize(byte[] data) {
         Object obj = null;
         try (ByteArrayInputStream bis = new ByteArrayInputStream(data);
              ObjectInputStream ois = new ObjectInputStream(bis)) {
+            ObjectInputFilters.enableObjectFilterIfUnprotected(ois);
             obj = ois.readObject();
         } catch (Exception ex) {
             log.info("Exception during deserialization", ex);
diff --git a/pulsar-functions/pom.xml b/pulsar-functions/pom.xml
index cddeec3be7dbb..3a8e6a5187c6f 100644
--- a/pulsar-functions/pom.xml
+++ b/pulsar-functions/pom.xml
@@ -76,4 +76,16 @@
 
   </profiles>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>io.github.pixee</groupId>
+        <artifactId>java-security-toolkit</artifactId>
+        <version>${versions.java-security-toolkit}</version>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+  <properties>
+    <versions.java-security-toolkit>1.1.3</versions.java-security-toolkit>
+  </properties>
 </project>