diff --git a/bin/README.md b/bin/README.md
index 317a71c..8aa450c 100644
--- a/bin/README.md
+++ b/bin/README.md
@@ -3,9 +3,9 @@
 This directory contains pre-compiled binaries for the DB Backup Tool across multiple platforms and architectures.
 
 ## Build Information
-- **Version**: 3.42.49
-- **Build Time**: 2026-01-16_14:37:18_UTC
-- **Git Commit**: bfe99e9
+- **Version**: 3.42.50
+- **Build Time**: 2026-01-16_14:53:54_UTC
+- **Git Commit**: 5728b46
 
 ## Recent Updates (v1.1.0)
 - ✅ Fixed TUI progress display with line-by-line output
diff --git a/internal/dedup/chunker_test.go b/internal/dedup/chunker_test.go
index d6a9139..dee2f36 100644
--- a/internal/dedup/chunker_test.go
+++ b/internal/dedup/chunker_test.go
@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"crypto/rand"
 	"io"
+	mathrand "math/rand"
 	"testing"
 )
 
@@ -100,12 +101,15 @@ func TestChunker_Deterministic(t *testing.T) {
 
 func TestChunker_ShiftedData(t *testing.T) {
 	// Test that shifted data still shares chunks (the key CDC benefit)
+	// Use deterministic random data for reproducible test results
+	rng := mathrand.New(mathrand.NewSource(42))
+	
 	original := make([]byte, 100*1024)
-	rand.Read(original)
+	rng.Read(original)
 
 	// Create shifted version (prepend some bytes)
 	prefix := make([]byte, 1000)
-	rand.Read(prefix)
+	rng.Read(prefix)
 	shifted := append(prefix, original...)
 
 	// Chunk both