diff --git a/build/dependencies.props b/build/dependencies.props
index eddd9838e6..b0f322e6e9 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -12,7 +12,7 @@
     <NETStandardLibraryNETFrameworkVersion>2.0.0-*</NETStandardLibraryNETFrameworkVersion>
     <RuntimeFrameworkVersion Condition="'$(TargetFramework)'=='netcoreapp2.0'">2.0.0-*</RuntimeFrameworkVersion>
     <RoslynVersion>2.3.0</RoslynVersion>
-    <RoslynDevVersion>2.6.0-beta*</RoslynDevVersion>
+    <RoslynDevVersion>2.3.0-beta4-*</RoslynDevVersion>
     <StreamJsonRpcVersion>1.1.92</StreamJsonRpcVersion>
     <TestSdkVersion>15.3.0-*</TestSdkVersion>
 
diff --git a/src/Microsoft.CodeAnalysis.Remote.Razor/RazorLanguageService.cs b/src/Microsoft.CodeAnalysis.Remote.Razor/RazorLanguageService.cs
index 930abdee3a..b3a165bcd4 100644
--- a/src/Microsoft.CodeAnalysis.Remote.Razor/RazorLanguageService.cs
+++ b/src/Microsoft.CodeAnalysis.Remote.Razor/RazorLanguageService.cs
@@ -31,7 +31,7 @@ namespace Microsoft.CodeAnalysis.Remote.Razor
         {
             var projectId = ProjectId.CreateFromSerialized(projectIdBytes, projectDebugName);
 
-            var solution = await GetSolutionAsync(cancellationToken).ConfigureAwait(false);
+            var solution = await GetSolutionAsync().ConfigureAwait(false);
             var project = solution.GetProject(projectId);
 
             var resolver = new DefaultTagHelperResolver(designTime: true);
diff --git a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDirectiveResolver.cs b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDirectiveResolver.cs
index 63b6f1781e..870bbc6617 100644
--- a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDirectiveResolver.cs
+++ b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDirectiveResolver.cs
@@ -23,11 +23,7 @@ namespace Microsoft.VisualStudio.LanguageServices.Razor
 
                 using (var session = await client.CreateSessionAsync(project.Solution))
                 {
-                    var directives = await session.InvokeAsync<IEnumerable<DirectiveDescriptor>>(
-                            "GetDirectivesAsync", 
-                            new object[] { project.Id.Id, "Foo", },
-                            cancellationToken)
-                        .ConfigureAwait(false);
+                    var directives = await session.InvokeAsync<IEnumerable<DirectiveDescriptor>>("GetDirectivesAsync", new object[] { project.Id.Id, "Foo", }).ConfigureAwait(false);
                     return directives;
                 }
             }
@@ -41,4 +37,4 @@ namespace Microsoft.VisualStudio.LanguageServices.Razor
         }
     }
 }
-#endif
+#endif
\ No newline at end of file
diff --git a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDocumentGenerator.cs b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDocumentGenerator.cs
index 181b98f9b1..308e67e585 100644
--- a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDocumentGenerator.cs
+++ b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultRazorEngineDocumentGenerator.cs
@@ -21,11 +21,7 @@ namespace Microsoft.VisualStudio.LanguageServices.Razor
 
                 using (var session = await client.CreateSessionAsync(project.Solution))
                 {
-                    var document = await session.InvokeAsync<RazorEngineDocument>(
-                            "GenerateDocumentAsync", 
-                            new object[] { project.Id.Id, "Foo", filePath, text },
-                            cancellationToken)
-                        .ConfigureAwait(false);
+                    var document = await session.InvokeAsync<RazorEngineDocument>("GenerateDocumentAsync", new object[] { project.Id.Id, "Foo", filePath, text }).ConfigureAwait(false);
                     return document;
                 }
             }
diff --git a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultTagHelperResolver.cs b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultTagHelperResolver.cs
index 5d8ba6b26d..22804f9b90 100644
--- a/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultTagHelperResolver.cs
+++ b/src/Microsoft.VisualStudio.LanguageServices.Razor/DefaultTagHelperResolver.cs
@@ -44,10 +44,8 @@ namespace Microsoft.VisualStudio.LanguageServices.Razor
                         if (session != null)
                         {
                             var jsonObject = await session.InvokeAsync<JObject>(
-                                    "GetTagHelpersAsync",
-                                    new object[] { project.Id.Id, "Foo", },
-                                    CancellationToken.None
-                                ).ConfigureAwait(false);
+                                "GetTagHelpersAsync",
+                                new object[] { project.Id.Id, "Foo", }).ConfigureAwait(false);
 
                             result = GetTagHelperResolutionResult(jsonObject);