diff --git a/Directory.Packages.props b/Directory.Packages.props
index 78587d5c43..35f2d16dd4 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -9,7 +9,7 @@
         <MicrosoftTestPackageVersion>17.8.0</MicrosoftTestPackageVersion>
         <MSBuildPackageVersion>17.3.2</MSBuildPackageVersion>
         <NuGetPackageVersion>6.11.0-rc.110</NuGetPackageVersion>
-        <RoslynPackageVersion>4.10.0-2.24112.8</RoslynPackageVersion>
+        <RoslynPackageVersion>4.12.0-1.24358.3</RoslynPackageVersion>
         <XunitPackageVersion>2.6.1</XunitPackageVersion>
     </PropertyGroup>
 
diff --git a/src/OmniSharp.Abstractions/Configuration.cs b/src/OmniSharp.Abstractions/Configuration.cs
index 51031d62b4..3fd36a2469 100644
--- a/src/OmniSharp.Abstractions/Configuration.cs
+++ b/src/OmniSharp.Abstractions/Configuration.cs
@@ -4,7 +4,7 @@ internal static class Configuration
     {
         public static bool ZeroBasedIndices = false;
 
-        public const string RoslynVersion = "4.10.0.0";
+        public const string RoslynVersion = "4.12.0.0";
         public const string RoslynPublicKeyToken = "31bf3856ad364e35";
 
         public readonly static string RoslynFeatures = GetRoslynAssemblyFullName("Microsoft.CodeAnalysis.Features");
diff --git a/tests/OmniSharp.Cake.Tests/BlockStructureFacts.cs b/tests/OmniSharp.Cake.Tests/BlockStructureFacts.cs
index a170950055..9dfd9d1ab3 100644
--- a/tests/OmniSharp.Cake.Tests/BlockStructureFacts.cs
+++ b/tests/OmniSharp.Cake.Tests/BlockStructureFacts.cs
@@ -38,7 +38,9 @@ void M()[|
                 .ToArray();
 
             var expected = testFile.Content.GetSpans()
-                .Select(span => testFile.Content.GetRangeFromSpan(span).ToRange()).ToArray();
+                .Select(span => testFile.Content.GetRangeFromSpan(span).ToRange())
+                .Reverse()
+                .ToArray();
 
             Assert.Equal(expected, lineSpans);
         }
diff --git a/tests/OmniSharp.Roslyn.CSharp.Tests/BlockStructureFacts.cs b/tests/OmniSharp.Roslyn.CSharp.Tests/BlockStructureFacts.cs
index 2579e0baba..e4e165adeb 100644
--- a/tests/OmniSharp.Roslyn.CSharp.Tests/BlockStructureFacts.cs
+++ b/tests/OmniSharp.Roslyn.CSharp.Tests/BlockStructureFacts.cs
@@ -37,7 +37,9 @@ void M()[|
                 .ToArray();
 
             var expected = testFile.Content.GetSpans()
-                .Select(span => testFile.Content.GetRangeFromSpan(span).ToRange()).ToArray();
+                .Select(span => testFile.Content.GetRangeFromSpan(span).ToRange())
+                .Reverse()
+                .ToArray();
 
             Assert.Equal(expected, lineSpans);
         }