diff --git a/nanoFramework.WebServer.FileSystem.nuspec b/nanoFramework.WebServer.FileSystem.nuspec
index 9e4e11f..6e2b5d1 100644
--- a/nanoFramework.WebServer.FileSystem.nuspec
+++ b/nanoFramework.WebServer.FileSystem.nuspec
@@ -25,7 +25,7 @@ Otherwise use 'nanoFramework.WebServer' nuget.</description>
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.16.11" />
       <dependency id="nanoFramework.System.Net.Http.Server" version="1.5.172" />
-      <dependency id="nanoFramework.System.IO.FileSystem" version="1.1.77" />
+      <dependency id="nanoFramework.System.IO.FileSystem" version="1.1.78" />
     </dependencies>
   </metadata>
   <files>
diff --git a/nanoFramework.WebServer.FileSystem/nanoFramework.WebServer.FileSystem.nfproj b/nanoFramework.WebServer.FileSystem/nanoFramework.WebServer.FileSystem.nfproj
index 29c0031..760c29e 100644
--- a/nanoFramework.WebServer.FileSystem/nanoFramework.WebServer.FileSystem.nfproj
+++ b/nanoFramework.WebServer.FileSystem/nanoFramework.WebServer.FileSystem.nfproj
@@ -71,8 +71,8 @@
     <Reference Include="nanoFramework.System.Text, Version=1.3.16.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.Text.1.3.16\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
-    <Reference Include="System.IO.FileSystem, Version=1.1.77.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.IO.FileSystem.1.1.77\lib\System.IO.FileSystem.dll</HintPath>
+    <Reference Include="System.IO.FileSystem, Version=1.1.78.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.IO.FileSystem.1.1.78\lib\System.IO.FileSystem.dll</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=1.1.86.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.IO.Streams.1.1.86\lib\System.IO.Streams.dll</HintPath>
diff --git a/nanoFramework.WebServer.FileSystem/packages.config b/nanoFramework.WebServer.FileSystem/packages.config
index c95d89a..a8ff423 100644
--- a/nanoFramework.WebServer.FileSystem/packages.config
+++ b/nanoFramework.WebServer.FileSystem/packages.config
@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="1.5.59" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.IO.FileSystem" version="1.1.77" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.FileSystem" version="1.1.78" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.86" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net" version="1.11.27" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net.Http.Server" version="1.5.172" targetFramework="netnano1.0" />
diff --git a/nanoFramework.WebServer.FileSystem/packages.lock.json b/nanoFramework.WebServer.FileSystem/packages.lock.json
index e3c04e6..99682f3 100644
--- a/nanoFramework.WebServer.FileSystem/packages.lock.json
+++ b/nanoFramework.WebServer.FileSystem/packages.lock.json
@@ -22,9 +22,9 @@
       },
       "nanoFramework.System.IO.FileSystem": {
         "type": "Direct",
-        "requested": "[1.1.77, 1.1.77]",
-        "resolved": "1.1.77",
-        "contentHash": "98GdzuDUekavkruxNU99wDO9IUAFQ6yc24e+ypEDteQb4Vfsdhmf6fMPXAVCgexTibsHpaN21WlJghvDuGDUYA=="
+        "requested": "[1.1.78, 1.1.78]",
+        "resolved": "1.1.78",
+        "contentHash": "gQL7MbsENZHTBj84r1x2FshLd1z3QcNeZEo3CvarLop69x+E9y01ZQ4R/NpRiM822AnuOtEyX3KpkqYrc+i9uA=="
       },
       "nanoFramework.System.IO.Streams": {
         "type": "Direct",
diff --git a/tests/WebServerE2ETests/WebServerE2ETests.nfproj b/tests/WebServerE2ETests/WebServerE2ETests.nfproj
index 475f963..721f531 100644
--- a/tests/WebServerE2ETests/WebServerE2ETests.nfproj
+++ b/tests/WebServerE2ETests/WebServerE2ETests.nfproj
@@ -44,8 +44,8 @@
     <Reference Include="System.Device.Wifi, Version=1.5.115.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.System.Device.Wifi.1.5.115\lib\System.Device.Wifi.dll</HintPath>
     </Reference>
-    <Reference Include="System.IO.FileSystem, Version=1.1.77.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.System.IO.FileSystem.1.1.77\lib\System.IO.FileSystem.dll</HintPath>
+    <Reference Include="System.IO.FileSystem, Version=1.1.78.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.System.IO.FileSystem.1.1.78\lib\System.IO.FileSystem.dll</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=1.1.86.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.System.IO.Streams.1.1.86\lib\System.IO.Streams.dll</HintPath>
diff --git a/tests/WebServerE2ETests/packages.config b/tests/WebServerE2ETests/packages.config
index 4d3b8ee..8b23b18 100644
--- a/tests/WebServerE2ETests/packages.config
+++ b/tests/WebServerE2ETests/packages.config
@@ -4,7 +4,7 @@
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="1.5.59" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Device.Wifi" version="1.5.115" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.IO.FileSystem" version="1.1.77" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.FileSystem" version="1.1.78" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.86" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net" version="1.11.27" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net.Http.Server" version="1.5.172" targetFramework="netnano1.0" />
diff --git a/tests/WebServerE2ETests/packages.lock.json b/tests/WebServerE2ETests/packages.lock.json
index 7284aa5..c814ca3 100644
--- a/tests/WebServerE2ETests/packages.lock.json
+++ b/tests/WebServerE2ETests/packages.lock.json
@@ -28,9 +28,9 @@
       },
       "nanoFramework.System.IO.FileSystem": {
         "type": "Direct",
-        "requested": "[1.1.77, 1.1.77]",
-        "resolved": "1.1.77",
-        "contentHash": "98GdzuDUekavkruxNU99wDO9IUAFQ6yc24e+ypEDteQb4Vfsdhmf6fMPXAVCgexTibsHpaN21WlJghvDuGDUYA=="
+        "requested": "[1.1.78, 1.1.78]",
+        "resolved": "1.1.78",
+        "contentHash": "gQL7MbsENZHTBj84r1x2FshLd1z3QcNeZEo3CvarLop69x+E9y01ZQ4R/NpRiM822AnuOtEyX3KpkqYrc+i9uA=="
       },
       "nanoFramework.System.IO.Streams": {
         "type": "Direct",