diff --git a/src/duplicacy_backupmanager_test.go b/src/duplicacy_backupmanager_test.go
index ad4d455..2255250 100644
--- a/src/duplicacy_backupmanager_test.go
+++ b/src/duplicacy_backupmanager_test.go
@@ -176,8 +176,6 @@ func assertRestoreFailures(t *testing.T, failedFiles int, expectedFailedFiles in
 }
 
 func TestBackupManager(t *testing.T) {
-
-	rand.Seed(time.Now().UnixNano())
 	setTestingT(t)
 	SetLoggingLevel(INFO)
 
@@ -422,7 +420,7 @@ func TestBackupManager(t *testing.T) {
 
 // Create file with random file with certain seed
 func createRandomFileSeeded(path string, maxSize int, seed int64) {
-	rand.Seed(seed)
+	r := rand.New(rand.NewSource(seed))
 	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
 	if err != nil {
 		LOG_ERROR("RANDOM_FILE", "Can't open %s for writing: %v", path, err)
@@ -439,7 +437,7 @@ func createRandomFileSeeded(path string, maxSize int, seed int64) {
 		if bytes > cap(buffer) {
 			bytes = cap(buffer)
 		}
-		rand.Read(buffer[:bytes])
+		r.Read(buffer[:bytes])
 		bytes, err = file.Write(buffer[:bytes])
 		if err != nil {
 			LOG_ERROR("RANDOM_FILE", "Failed to write to %s: %v", path, err)
@@ -450,7 +448,7 @@ func createRandomFileSeeded(path string, maxSize int, seed int64) {
 }
 
 func corruptFile(path string, start int, length int, seed int64) {
-	rand.Seed(seed)
+	r := rand.New(rand.NewSource(seed))
 
 	file, err := os.OpenFile(path, os.O_WRONLY, 0644)
 	if err != nil {
@@ -471,7 +469,7 @@ func corruptFile(path string, start int, length int, seed int64) {
 	}
 
 	buffer := make([]byte, length)
-	rand.Read(buffer)
+	r.Read(buffer)
 
 	_, err = file.Write(buffer)
 	if err != nil {