diff --git a/src/NoRefsTests/NoRefsTests.csproj b/src/NoRefsTests/NoRefsTests.csproj
index 8b7ff12d..fba7d3fa 100644
--- a/src/NoRefsTests/NoRefsTests.csproj
+++ b/src/NoRefsTests/NoRefsTests.csproj
@@ -29,7 +29,7 @@
     <Compile Remove="..\Tests\NamedTupleSample.cs" />
     <Compile Remove="..\Tests\RangeIndexUsage.cs" />
     <Compile Remove="..\Tests\PolyfillExtensionsTests_*.cs" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="ProjectDefaults" Version="1.0.101" PrivateAssets="all" />
diff --git a/src/PublicTests/PublicTests.csproj b/src/PublicTests/PublicTests.csproj
index 250da833..c381075e 100644
--- a/src/PublicTests/PublicTests.csproj
+++ b/src/PublicTests/PublicTests.csproj
@@ -24,7 +24,7 @@
       <Link>Pollyfill\PlatformCompatibility\%(RecursiveDir)%(Filename).cs</Link>
     </Compile>
     <Compile Include="..\Tests\*.cs" Exclude="..\Tests\BuildApiTest.cs;..\Tests\NullabilitySync.cs" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="ProjectDefaults" Version="1.0.101" PrivateAssets="all" />
diff --git a/src/Tests/Tests.csproj b/src/Tests/Tests.csproj
index 11d5e29f..53a1af73 100644
--- a/src/Tests/Tests.csproj
+++ b/src/Tests/Tests.csproj
@@ -23,7 +23,7 @@
       <Link>Pollyfill\PlatformCompatibility\%(RecursiveDir)%(Filename).cs</Link>
     </Compile>
     <PackageReference Include="Mono.Cecil" Version="0.11.5" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="MarkdownSnippets.MsBuild" Version="25.1.0" PrivateAssets="all" />
diff --git a/src/UnsafeTests/UnsafeTests.csproj b/src/UnsafeTests/UnsafeTests.csproj
index 4dcefd0f..eac0f221 100644
--- a/src/UnsafeTests/UnsafeTests.csproj
+++ b/src/UnsafeTests/UnsafeTests.csproj
@@ -24,7 +24,7 @@
       <Link>Pollyfill\PlatformCompatibility\%(RecursiveDir)%(Filename).cs</Link>
     </Compile>
     <Compile Include="..\Tests\*.cs" Exclude="..\Tests\BuildApiTest.cs;..\Tests\NullabilitySync.cs" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="ProjectDefaults" Version="1.0.101" PrivateAssets="all" />