diff --git a/src/Unosquare.Labs.EmbedIO/Modules/StaticFilesModule.cs b/src/Unosquare.Labs.EmbedIO/Modules/StaticFilesModule.cs
index 3c816b110..ef916c24f 100644
--- a/src/Unosquare.Labs.EmbedIO/Modules/StaticFilesModule.cs
+++ b/src/Unosquare.Labs.EmbedIO/Modules/StaticFilesModule.cs
@@ -436,7 +436,7 @@ private static bool CalculateRange(string partialHeader, long fileSize, out int
                  string.IsNullOrWhiteSpace(range[1])) ||
                 (range.Length == 1 && int.TryParse(range[0], out lowerByteIndex)))
             {
-                upperByteIndex = (int) fileSize - 1;
+                upperByteIndex = (int) fileSize;
                 return true;
             }
 
@@ -444,7 +444,7 @@ private static bool CalculateRange(string partialHeader, long fileSize, out int
                 int.TryParse(range[1], out upperByteIndex))
             {
                 lowerByteIndex = (int) fileSize - upperByteIndex;
-                upperByteIndex = (int) fileSize - 1;
+                upperByteIndex = (int) fileSize;
                 return true;
             }
 
diff --git a/src/Unosquare.Labs.EmbedIO/project.json b/src/Unosquare.Labs.EmbedIO/project.json
index 608b64eba..1082f6f8e 100644
--- a/src/Unosquare.Labs.EmbedIO/project.json
+++ b/src/Unosquare.Labs.EmbedIO/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.0.0-*",
+  "version": "1.2.3-*",
   "buildOptions": {
     "xmlDoc": true
   },
diff --git a/test/Unosquare.Labs.EmbedIO.Tests/StaticFilesModuleTest.cs b/test/Unosquare.Labs.EmbedIO.Tests/StaticFilesModuleTest.cs
index 33ffce579..b720228e8 100644
--- a/test/Unosquare.Labs.EmbedIO.Tests/StaticFilesModuleTest.cs
+++ b/test/Unosquare.Labs.EmbedIO.Tests/StaticFilesModuleTest.cs
@@ -338,13 +338,13 @@ public async Task FileWritable()
 
             using (var server = new WebServer(endpoint, Logger))
             {
-                server.RegisterModule(new StaticFilesModule(root));
+                server.RegisterModule(new StaticFilesModule(root) { UseRamCache = false });
                 var serverTask = server.RunAsync();
 
                 var webClient = new HttpClient();
                 var remoteFile = await webClient.GetStringAsync(endpoint);
                 File.WriteAllText(file, Resources.SubIndex);
-                await Task.Delay(100);
+                
                 var remoteUpdatedFile = await webClient.GetStringAsync(endpoint);
                 File.WriteAllText(file, nameof(WebServer));