diff --git a/Directory.Packages.props b/Directory.Packages.props
index 0c59593e..55177101 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -75,7 +75,7 @@
     -->
     <PackageVersion Include="Polyfill" Version="11.4.5" />
     <PackageVersion Include="TUnit" Version="1.76.0" />
-    <PackageVersion Include="Verify.TUnit" Version="32.0.1" />
+    <PackageVersion Include="Verify.TUnit" Version="33.3.4" />
   </ItemGroup>
   <ItemGroup Label="Test framework metadata">
     <!--
diff --git a/tests/NetEvolve.FrameShift.Execution.Tests.Integration/NetEvolve.FrameShift.Execution.Tests.Integration.csproj b/tests/NetEvolve.FrameShift.Execution.Tests.Integration/NetEvolve.FrameShift.Execution.Tests.Integration.csproj
index b21f256a..315852d5 100644
--- a/tests/NetEvolve.FrameShift.Execution.Tests.Integration/NetEvolve.FrameShift.Execution.Tests.Integration.csproj
+++ b/tests/NetEvolve.FrameShift.Execution.Tests.Integration/NetEvolve.FrameShift.Execution.Tests.Integration.csproj
@@ -5,6 +5,12 @@
     <OutputType>Exe</OutputType>
     <IsPackable>false</IsPackable>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
+
+    <!-- Verify v33+ build-time license gate (SC021). FrameShift is a non-revenue open source project, so the OpenSource exemption applies.
+         See https://github.com/VerifyTests/Verify/blob/main/docs/maintenance-fee.md
+         Renew yearly: the end month may be at most 12 months ahead of the build date; builds fail after 2027-09. -->
+    <Verify_SponsorshipExemption>OpenSource</Verify_SponsorshipExemption>
+    <Verify_SponsorshipExemptionUntil>2027-09</Verify_SponsorshipExemptionUntil>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" />
diff --git a/tests/NetEvolve.FrameShift.Execution.Tests.Unit/NetEvolve.FrameShift.Execution.Tests.Unit.csproj b/tests/NetEvolve.FrameShift.Execution.Tests.Unit/NetEvolve.FrameShift.Execution.Tests.Unit.csproj
index 46cadf23..6aa947c9 100644
--- a/tests/NetEvolve.FrameShift.Execution.Tests.Unit/NetEvolve.FrameShift.Execution.Tests.Unit.csproj
+++ b/tests/NetEvolve.FrameShift.Execution.Tests.Unit/NetEvolve.FrameShift.Execution.Tests.Unit.csproj
@@ -5,6 +5,12 @@
     <OutputType>Exe</OutputType>
     <IsPackable>false</IsPackable>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
+
+    <!-- Verify v33+ build-time license gate (SC021). FrameShift is a non-revenue open source project, so the OpenSource exemption applies.
+         See https://github.com/VerifyTests/Verify/blob/main/docs/maintenance-fee.md
+         Renew yearly: the end month may be at most 12 months ahead of the build date; builds fail after 2027-09. -->
+    <Verify_SponsorshipExemption>OpenSource</Verify_SponsorshipExemption>
+    <Verify_SponsorshipExemptionUntil>2027-09</Verify_SponsorshipExemptionUntil>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" />
diff --git a/tests/NetEvolve.FrameShift.Tests.Integration/NetEvolve.FrameShift.Tests.Integration.csproj b/tests/NetEvolve.FrameShift.Tests.Integration/NetEvolve.FrameShift.Tests.Integration.csproj
index 4195a5e6..9861f80b 100644
--- a/tests/NetEvolve.FrameShift.Tests.Integration/NetEvolve.FrameShift.Tests.Integration.csproj
+++ b/tests/NetEvolve.FrameShift.Tests.Integration/NetEvolve.FrameShift.Tests.Integration.csproj
@@ -31,6 +31,12 @@
       `PolyUseEmbeddedAttribute`, which gives every project its own embedded copy.
     -->
     <PolyPublic>false</PolyPublic>
+
+    <!-- Verify v33+ build-time license gate (SC021). FrameShift is a non-revenue open source project, so the OpenSource exemption applies.
+         See https://github.com/VerifyTests/Verify/blob/main/docs/maintenance-fee.md
+         Renew yearly: the end month may be at most 12 months ahead of the build date; builds fail after 2027-09. -->
+    <Verify_SponsorshipExemption>OpenSource</Verify_SponsorshipExemption>
+    <Verify_SponsorshipExemptionUntil>2027-09</Verify_SponsorshipExemptionUntil>
   </PropertyGroup>
   <PropertyGroup Label="xUnit v3 availability">
     <!--
diff --git a/tests/NetEvolve.FrameShift.Tests.Unit/NetEvolve.FrameShift.Tests.Unit.csproj b/tests/NetEvolve.FrameShift.Tests.Unit/NetEvolve.FrameShift.Tests.Unit.csproj
index d703a067..f653187c 100644
--- a/tests/NetEvolve.FrameShift.Tests.Unit/NetEvolve.FrameShift.Tests.Unit.csproj
+++ b/tests/NetEvolve.FrameShift.Tests.Unit/NetEvolve.FrameShift.Tests.Unit.csproj
@@ -31,6 +31,12 @@
       `PolyUseEmbeddedAttribute`, which gives every project its own embedded copy.
     -->
     <PolyPublic>false</PolyPublic>
+
+    <!-- Verify v33+ build-time license gate (SC021). FrameShift is a non-revenue open source project, so the OpenSource exemption applies.
+         See https://github.com/VerifyTests/Verify/blob/main/docs/maintenance-fee.md
+         Renew yearly: the end month may be at most 12 months ahead of the build date; builds fail after 2027-09. -->
+    <Verify_SponsorshipExemption>OpenSource</Verify_SponsorshipExemption>
+    <Verify_SponsorshipExemptionUntil>2027-09</Verify_SponsorshipExemptionUntil>
   </PropertyGroup>
   <PropertyGroup Label="xUnit v3 availability">
     <!--