diff --git a/PdfJsSharp/PdfJsSharp.csproj b/PdfJsSharp/PdfJsSharp.csproj
index e77654d..2efed5f 100644
--- a/PdfJsSharp/PdfJsSharp.csproj
+++ b/PdfJsSharp/PdfJsSharp.csproj
@@ -49,7 +49,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="System.Collections.Immutable" Version="9.0.8" />
+    <PackageReference Include="System.Collections.Immutable" Version="9.0.9" />
   </ItemGroup>
 
   <ItemGroup>