diff --git a/src/libse/Common/Configuration.cs b/src/libse/Common/Configuration.cs
index 47cd537b9..fc0fbca9a 100644
--- a/src/libse/Common/Configuration.cs
+++ b/src/libse/Common/Configuration.cs
@@ -25,7 +25,7 @@ namespace Nikse.SubtitleEdit.Core.Common
         public static readonly string TimeCodesDirectory = DataDirectory + "TimeCodes" + Path.DirectorySeparatorChar;
         public static readonly string AutoBackupDirectory = DataDirectory + "AutoBackup" + Path.DirectorySeparatorChar;
         public static readonly string VobSubCompareDirectory = DataDirectory + "VobSub" + Path.DirectorySeparatorChar;
-        public static readonly string TesseractDirectory = DataDirectory + "Tesseract533" + Path.DirectorySeparatorChar;
+        public static readonly string TesseractDirectory = DataDirectory + "Tesseract550" + Path.DirectorySeparatorChar;
         public static readonly string Tesseract302Directory = DataDirectory + "Tesseract302" + Path.DirectorySeparatorChar;
         public static readonly string WaveformsDirectory = DataDirectory + "Waveforms" + Path.DirectorySeparatorChar;
         public static readonly string PluginsDirectory = DataDirectory + "Plugins";
diff --git a/src/ui/Forms/Ocr/DownloadTesseract5.cs b/src/ui/Forms/Ocr/DownloadTesseract5.cs
index ea87c3ce3..0c1e3b703 100644
--- a/src/ui/Forms/Ocr/DownloadTesseract5.cs
+++ b/src/ui/Forms/Ocr/DownloadTesseract5.cs
@@ -11,7 +11,7 @@ namespace Nikse.SubtitleEdit.Forms.Ocr
 {
     public sealed partial class DownloadTesseract5 : Form
     {
-        public const string TesseractDownloadUrl = "https://github.com/SubtitleEdit/support-files/releases/download/Tesseract533-2023-10-05/Tesseract533.zip";
+        public const string TesseractDownloadUrl = "https://github.com/SubtitleEdit/support-files/releases/download/tesseract550/Tesseract550.zip";
         private readonly CancellationTokenSource _cancellationTokenSource;
 
         public DownloadTesseract5(string version)
diff --git a/src/ui/Forms/Ocr/GetTesseractDictionaries.cs b/src/ui/Forms/Ocr/GetTesseractDictionaries.cs
index 2677c448b..3955a59aa 100644
--- a/src/ui/Forms/Ocr/GetTesseractDictionaries.cs
+++ b/src/ui/Forms/Ocr/GetTesseractDictionaries.cs
@@ -73,7 +73,7 @@ namespace Nikse.SubtitleEdit.Forms.Ocr
 
             for (var i = 0; i < comboBoxDictionaries.Items.Count; i++)
             {
-                if (comboBoxDictionaries.Items[i] is string n && n == "English")
+                if (comboBoxDictionaries.Items[i].ToString() == "English")
                 {
                     comboBoxDictionaries.SelectedIndex = i;
                     break;
diff --git a/src/ui/Forms/Ocr/VobSubOcr.cs b/src/ui/Forms/Ocr/VobSubOcr.cs
index 62766f817..d1a43a40e 100644
--- a/src/ui/Forms/Ocr/VobSubOcr.cs
+++ b/src/ui/Forms/Ocr/VobSubOcr.cs
@@ -336,7 +336,7 @@ namespace Nikse.SubtitleEdit.Forms.Ocr
         // Dictionaries/spellchecking/fixing
         private OcrFixEngine _ocrFixEngine;
         private int _tesseractOcrAutoFixes;
-        private string Tesseract5Version = "5.3.3";
+        private string Tesseract5Version = "5.5.0";
 
         private Subtitle _bdnXmlOriginal;
         private Subtitle _bdnXmlSubtitle;