diff --git a/src/StreamingCbor.csproj b/src/StreamingCbor.csproj
index 526933d..90412c8 100644
--- a/src/StreamingCbor.csproj
+++ b/src/StreamingCbor.csproj
@@ -16,7 +16,7 @@
   <ItemGroup>
     <PackageReference Include="BenchmarkDotNet" Version="0.12.0" />
     <PackageReference Include="Dahomey.Cbor" Version="1.5.0" />
-    <PackageReference Include="PeterO.Cbor" Version="4.0.1" />
+    <PackageReference Include="PeterO.Cbor" Version="4.5.1" />
     <PackageReference Include="System.IO.Pipelines" Version="4.6.0" />
   </ItemGroup>