diff --git a/maze/maze.csproj b/maze/maze.csproj
old mode 100755
new mode 100644
index c2b1e24..421aab7
--- a/maze/maze.csproj
+++ b/maze/maze.csproj
@@ -20,7 +20,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETCore.App" Version="1.0.1" />
+    <PackageReference Include="Microsoft.NETCore.App" Version="2.0.3" />
   </ItemGroup>
 
   <ItemGroup>