diff --git a/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj b/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
index 8cbd67b..850f693 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
@@ -42,7 +42,7 @@
       <HintPath>..\packages\nanoFramework.Logging.1.1.161\lib\nanoFramework.Logging.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Native, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.18\lib\nanoFramework.Runtime.Native.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.19\lib\nanoFramework.Runtime.Native.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.6\lib\nanoFramework.System.Collections.dll</HintPath>
@@ -50,8 +50,8 @@
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.6\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
-    <Reference Include="System.Diagnostics.Stopwatch, Version=1.2.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Diagnostics.Stopwatch.1.2.862\lib\System.Diagnostics.Stopwatch.dll</HintPath>
+    <Reference Include="System.Diagnostics.Stopwatch, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.Diagnostics.Stopwatch.2.0.0-preview.3\lib\System.Diagnostics.Stopwatch.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
index b0ded72..faa60a3 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
@@ -3,8 +3,8 @@
   <package id="nanoFramework.Benchmark" version="1.0.113" targetFramework="netnano1.0" />
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.33" targetFramework="netnano1.0" />
   <package id="nanoFramework.Logging" version="1.1.161" targetFramework="netnano1.0" />
-  <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.18" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.19" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="2.0.0-preview.6" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Diagnostics.Stopwatch" version="1.2.862" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Diagnostics.Stopwatch" version="2.0.0-preview.3" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.6" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
index 94ef9c7..836f33c 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
@@ -22,9 +22,9 @@
       },
       "nanoFramework.Runtime.Native": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.18, 2.0.0-preview.18]",
-        "resolved": "2.0.0-preview.18",
-        "contentHash": "+xpG8ru6dGxC9UL/97sAa6uJF0O3Ivgh1UPixMREQxgzLLZFaqpOnij7ZzGuWO7ags2TwEm5pTmlk9AOBpfBkg=="
+        "requested": "[2.0.0-preview.19, 2.0.0-preview.19]",
+        "resolved": "2.0.0-preview.19",
+        "contentHash": "bLcWZHMCMVpNG/2s9FOjaofznAqJzko/No8mJpcAjoFuj6r0Ovr78My+e+nitm7HTGWYUMRK64h90bZ/3oAP0Q=="
       },
       "nanoFramework.System.Collections": {
         "type": "Direct",
@@ -34,9 +34,9 @@
       },
       "nanoFramework.System.Diagnostics.Stopwatch": {
         "type": "Direct",
-        "requested": "[1.2.862, 1.2.862]",
-        "resolved": "1.2.862",
-        "contentHash": "auNXXoJYOJ7mAxPvMPhbxFbDCtfKF/wSdsoBEQiRd8NaQWmLg12JL6YbNiKiNs+fBlxAL6duUorBdhSyPCdayg=="
+        "requested": "[2.0.0-preview.3, 2.0.0-preview.3]",
+        "resolved": "2.0.0-preview.3",
+        "contentHash": "2esmFjGqyiuplp/RHaUAzBH8OSYLopTlpbiTyqNMG99ElYEyuwrP7dHqHnc+YOI5hWPZRxrTB1stfJ7VGlv/8A=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",