diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 245f4df..ff58992 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,9 @@ on:
   push:
     branches:
       - master
+  pull_request:
+    branches:
+      - master
 
 jobs:
   ubuntu-latest:
diff --git a/build/Build.cs b/build/Build.cs
index 61ea4e3..38076a0 100644
--- a/build/Build.cs
+++ b/build/Build.cs
@@ -15,29 +15,23 @@ using static Nuke.Common.Tools.DotNet.DotNetTasks;
 [ShutdownDotNetAfterServerBuild]
 [GitHubActions("ci", GitHubActionsImage.UbuntuLatest,
     OnPushBranches = new[] {"master"},
+    OnPullRequestBranches = new[] {"master"},
     AutoGenerate = true,
-    InvokedTargets = new[] {nameof(Ci)}, 
+    InvokedTargets = new[] {nameof(Ci)},
     CacheKeyFiles = new string[0])]
 class Build : NukeBuild
 {
-    /// Support plugins are available for:
-    ///   - JetBrains ReSharper        https://nuke.build/resharper
-    ///   - JetBrains Rider            https://nuke.build/rider
-    ///   - Microsoft VisualStudio     https://nuke.build/visualstudio
-    ///   - Microsoft VSCode           https://nuke.build/vscode
-    public static int Main() => Execute<Build>(x => x.Package);
-
     [Parameter("Configuration to build - Default is 'Debug' (local) or 'Release' (server)")]
     readonly Configuration Configuration = IsLocalBuild ? Configuration.Debug : Configuration.Release;
 
-    [Solution] readonly Solution Solution;
-
-    Project SieveProject => Solution.AllProjects.First(p => p.Name == "Sieve");
-
     [GitRepository] readonly GitRepository GitRepository;
 
     [GitVersion(Framework = "netcoreapp3.1")] readonly GitVersion GitVersion;
 
+    [Solution] readonly Solution Solution;
+
+    Project SieveProject => Solution.AllProjects.First(p => p.Name == "Sieve");
+
     AbsolutePath OutputDirectory => RootDirectory / "output";
 
     Target Clean => _ => _
@@ -73,9 +67,7 @@ class Build : NukeBuild
         .Executes(() =>
         {
             DotNetTest(s => s
-                .SetProjectFile(Solution)
-                .EnableNoRestore()
-                .EnableNoBuild());
+                .SetProjectFile(Solution));
         });
 
     Target Package => _ => _
@@ -93,4 +85,11 @@ class Build : NukeBuild
 
     Target Ci => _ => _
         .DependsOn(Package);
+
+    /// Support plugins are available for:
+    /// - JetBrains ReSharper        https://nuke.build/resharper
+    /// - JetBrains Rider            https://nuke.build/rider
+    /// - Microsoft VisualStudio     https://nuke.build/visualstudio
+    /// - Microsoft VSCode           https://nuke.build/vscode
+    public static int Main() => Execute<Build>(x => x.Package);
 }