diff --git a/src/main/java/com/ddf/vodsystem/dto/ProgressTracker.java b/src/main/java/com/ddf/vodsystem/dto/ProgressTracker.java
new file mode 100644
index 0000000..4b2fdd6
--- /dev/null
+++ b/src/main/java/com/ddf/vodsystem/dto/ProgressTracker.java
@@ -0,0 +1,19 @@
+package com.ddf.vodsystem.dto;
+
+import lombok.Getter;
+
+@Getter
+public class ProgressTracker {
+    private float progress;
+
+    public ProgressTracker(float initialProgress) {
+        this.progress = initialProgress;
+    }
+
+    public void setProgress(float newProgress) {
+        if (newProgress < 0 || newProgress > 1) {
+            throw new IllegalArgumentException("Progress must be between 0 and 1");
+        }
+        this.progress = newProgress;
+    }
+}
diff --git a/src/main/java/com/ddf/vodsystem/entities/Job.java b/src/main/java/com/ddf/vodsystem/entities/Job.java
index 9c828b6..c97b30f 100644
--- a/src/main/java/com/ddf/vodsystem/entities/Job.java
+++ b/src/main/java/com/ddf/vodsystem/entities/Job.java
@@ -1,8 +1,8 @@
 package com.ddf.vodsystem.entities;
 
 import java.io.File;
-import java.util.concurrent.atomic.AtomicReference;
 
+import com.ddf.vodsystem.dto.ProgressTracker;
 import com.ddf.vodsystem.dto.VideoMetadata;
 import org.springframework.security.core.context.SecurityContext;
 
@@ -23,7 +23,7 @@ public class Job {
 
     // job status
     private JobStatus status = JobStatus.NOT_READY;
-    private AtomicReference<Float> progress = new AtomicReference<>(0f);
+    private ProgressTracker progress = new ProgressTracker(0.0f);
 
     public Job(String uuid, File inputFile, File outputFile, VideoMetadata inputVideoMetadata) {
         this.uuid = uuid;
diff --git a/src/main/java/com/ddf/vodsystem/services/EditService.java b/src/main/java/com/ddf/vodsystem/services/EditService.java
index b102cc8..820d921 100644
--- a/src/main/java/com/ddf/vodsystem/services/EditService.java
+++ b/src/main/java/com/ddf/vodsystem/services/EditService.java
@@ -30,7 +30,7 @@ public class EditService {
             return 1f;
         }
 
-        return job.getProgress().get();
+        return job.getProgress().getProgress();
     }
 
     private void validateClipConfig(VideoMetadata videoMetadata) {
diff --git a/src/main/java/com/ddf/vodsystem/services/FfmpegService.java b/src/main/java/com/ddf/vodsystem/services/FfmpegService.java
index e85ca4c..d930c43 100644
--- a/src/main/java/com/ddf/vodsystem/services/FfmpegService.java
+++ b/src/main/java/com/ddf/vodsystem/services/FfmpegService.java
@@ -1,5 +1,6 @@
 package com.ddf.vodsystem.services;
 
+import com.ddf.vodsystem.dto.ProgressTracker;
 import com.ddf.vodsystem.dto.VideoMetadata;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -11,7 +12,6 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.atomic.AtomicReference;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -24,7 +24,7 @@ public class FfmpegService {
     private static final float BITRATE_MULTIPLIER = 0.9f;
     private final Pattern timePattern = Pattern.compile("out_time_ms=(\\d+)");
 
-    public void runWithProgress(File inputFile, File outputFile, VideoMetadata videoMetadata, AtomicReference<Float> progress) throws IOException, InterruptedException {
+    public void runWithProgress(File inputFile, File outputFile, VideoMetadata videoMetadata, ProgressTracker progress) throws IOException, InterruptedException {
         logger.info("Starting FFMPEG process");
 
         List<String> command = buildCommand(inputFile, outputFile, videoMetadata);
@@ -45,7 +45,7 @@ public class FfmpegService {
     }
 
     public void run(File inputFile, File outputFile, VideoMetadata videoMetadata) throws IOException, InterruptedException {
-        runWithProgress(inputFile, outputFile, videoMetadata, new AtomicReference<>(0f));
+        runWithProgress(inputFile, outputFile, videoMetadata, new ProgressTracker(0.0f));
     }
 
     public void generateThumbnail(File inputFile, File outputFile, Float timeInVideo) throws IOException, InterruptedException {
@@ -77,7 +77,7 @@ public class FfmpegService {
         logger.info("Thumbnail generated successfully at {}", outputFile.getAbsolutePath());
     }
 
-    private void updateJobProgress(Process process, AtomicReference<Float> progress, Float length) throws IOException {
+    private void updateJobProgress(Process process, ProgressTracker progress, Float length) throws IOException {
         BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
 
         String line;
@@ -87,7 +87,7 @@ public class FfmpegService {
 
             if (matcher.find()) {
                 Float timeInMs = Float.parseFloat(matcher.group(1)) / 1000000f;
-                progress.set(timeInMs/length);
+                progress.setProgress(timeInMs/length);
             }
         }
     }