diff --git a/src/extensions/Wyam.Yaml/Wyam.Yaml.csproj b/src/extensions/Wyam.Yaml/Wyam.Yaml.csproj
index 26eb49c6..137fb38a 100644
--- a/src/extensions/Wyam.Yaml/Wyam.Yaml.csproj
+++ b/src/extensions/Wyam.Yaml/Wyam.Yaml.csproj
@@ -13,6 +13,6 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="YamlDotNet" Version="4.3.1" />
+    <PackageReference Include="YamlDotNet" Version="5.1.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file