diff --git a/src/Spark.Engine/Spark.Engine.csproj b/src/Spark.Engine/Spark.Engine.csproj
index cb917980..ba0d8f60 100644
--- a/src/Spark.Engine/Spark.Engine.csproj
+++ b/src/Spark.Engine/Spark.Engine.csproj
@@ -11,7 +11,7 @@
 
     <ItemGroup>
         <PackageReference Include="Fhir.Metrics" Version="1.3.0" />
-        <PackageReference Include="Hl7.Fhir.STU3" Version="5.11.0" />
+        <PackageReference Include="Hl7.Fhir.STU3" Version="5.11.1" />
         <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.0" />
         <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
         <PackageReference Include="System.Security.Cryptography.Xml" Version="8.0.2" />
diff --git a/src/Spark.Mongo/Spark.Mongo.csproj b/src/Spark.Mongo/Spark.Mongo.csproj
index 4e153e56..a031640f 100644
--- a/src/Spark.Mongo/Spark.Mongo.csproj
+++ b/src/Spark.Mongo/Spark.Mongo.csproj
@@ -10,7 +10,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Hl7.Fhir.STU3" Version="5.11.0" />
+        <PackageReference Include="Hl7.Fhir.STU3" Version="5.11.1" />
         <PackageReference Include="MongoDB.Driver" Version="2.30.0" />
     </ItemGroup>