diff --git a/src/MetadataExtractorCron/Extractors/CoscineMetadataExtractor.cs b/src/MetadataExtractorCron/Extractors/CoscineMetadataExtractor.cs
index 77e903f54489e7d2b6195cc9986e51a405708075..80a03f59dcbb5f8f33de9cf845134208c07be7a5 100644
--- a/src/MetadataExtractorCron/Extractors/CoscineMetadataExtractor.cs
+++ b/src/MetadataExtractorCron/Extractors/CoscineMetadataExtractor.cs
@@ -10,7 +10,6 @@ using VDS.RDF;
 using MetadataExtractorCron.Util;
 using VDS.RDF.Parsing;
 using System.Globalization;
-using System.Security.Cryptography;
 using Coscine.Metadata.Util;
 
 namespace MetadataExtractorCron.Extractors;
@@ -161,7 +160,7 @@ public class CoscineMetadataExtractor : IMetadataExtractor
             );
 
             return extractedOutputs[0];
-        } 
+        }
         finally
         {
             givenStream.Dispose();
diff --git a/src/MetadataExtractorCron/MetadataExtractorCron.csproj b/src/MetadataExtractorCron/MetadataExtractorCron.csproj
index 234d3a055252ad73a57643e4f56f139f46ffaabd..dfc48a2fa9d1056fcffd11a4534e3209854c6c0d 100644
--- a/src/MetadataExtractorCron/MetadataExtractorCron.csproj
+++ b/src/MetadataExtractorCron/MetadataExtractorCron.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Coscine.Database" Version="*-*" />
-    <PackageReference Include="Coscine.Metadata" Version="*-*" />
+    <PackageReference Include="Coscine.Metadata" Version="2.9.0" />
     <PackageReference Include="Coscine.ResourceTypes" Version="*-*" />
     <PackageReference Include="dotNetRDF" Version="2.7.5" />
   </ItemGroup>