diff --git a/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj b/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
index 68ce0f7ad3..d9835bf596 100644
--- a/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
+++ b/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
@@ -17,7 +17,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Fhir.Metrics" Version="1.3.1" />
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Reflection.Emit.Lightweight" Version="4.7.0" />
 		<PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
 	</ItemGroup>
diff --git a/src/Hl7.Fhir.ElementModel.R4.Tests/Hl7.Fhir.ElementModel.R4.Tests.csproj b/src/Hl7.Fhir.ElementModel.R4.Tests/Hl7.Fhir.ElementModel.R4.Tests.csproj
index c326d4310f..ce4d8ab405 100644
--- a/src/Hl7.Fhir.ElementModel.R4.Tests/Hl7.Fhir.ElementModel.R4.Tests.csproj
+++ b/src/Hl7.Fhir.ElementModel.R4.Tests/Hl7.Fhir.ElementModel.R4.Tests.csproj
@@ -26,6 +26,6 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.ElementModel.R4B.Tests/Hl7.Fhir.ElementModel.R4B.Tests.csproj b/src/Hl7.Fhir.ElementModel.R4B.Tests/Hl7.Fhir.ElementModel.R4B.Tests.csproj
index 1f4bf1c97c..825828523b 100644
--- a/src/Hl7.Fhir.ElementModel.R4B.Tests/Hl7.Fhir.ElementModel.R4B.Tests.csproj
+++ b/src/Hl7.Fhir.ElementModel.R4B.Tests/Hl7.Fhir.ElementModel.R4B.Tests.csproj
@@ -26,6 +26,6 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.ElementModel.R5.Tests/Hl7.Fhir.ElementModel.R5.Tests.csproj b/src/Hl7.Fhir.ElementModel.R5.Tests/Hl7.Fhir.ElementModel.R5.Tests.csproj
index d2e1e938c2..26c4ed812c 100644
--- a/src/Hl7.Fhir.ElementModel.R5.Tests/Hl7.Fhir.ElementModel.R5.Tests.csproj
+++ b/src/Hl7.Fhir.ElementModel.R5.Tests/Hl7.Fhir.ElementModel.R5.Tests.csproj
@@ -26,6 +26,6 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.ElementModel.STU3.Tests/Hl7.Fhir.ElementModel.STU3.Tests.csproj b/src/Hl7.Fhir.ElementModel.STU3.Tests/Hl7.Fhir.ElementModel.STU3.Tests.csproj
index 81c918fd9d..258a814b9c 100644
--- a/src/Hl7.Fhir.ElementModel.STU3.Tests/Hl7.Fhir.ElementModel.STU3.Tests.csproj
+++ b/src/Hl7.Fhir.ElementModel.STU3.Tests/Hl7.Fhir.ElementModel.STU3.Tests.csproj
@@ -22,7 +22,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.R4.Tests/Hl7.Fhir.R4.Tests.csproj b/src/Hl7.Fhir.R4.Tests/Hl7.Fhir.R4.Tests.csproj
index 115720fcf3..57efb6c65c 100644
--- a/src/Hl7.Fhir.R4.Tests/Hl7.Fhir.R4.Tests.csproj
+++ b/src/Hl7.Fhir.R4.Tests/Hl7.Fhir.R4.Tests.csproj
@@ -29,7 +29,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.R4B.Tests/Hl7.Fhir.R4B.Tests.csproj b/src/Hl7.Fhir.R4B.Tests/Hl7.Fhir.R4B.Tests.csproj
index 496291dcde..252f137c66 100644
--- a/src/Hl7.Fhir.R4B.Tests/Hl7.Fhir.R4B.Tests.csproj
+++ b/src/Hl7.Fhir.R4B.Tests/Hl7.Fhir.R4B.Tests.csproj
@@ -29,7 +29,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.R5.Tests/Hl7.Fhir.R5.Tests.csproj b/src/Hl7.Fhir.R5.Tests/Hl7.Fhir.R5.Tests.csproj
index c94e79f695..967606141e 100644
--- a/src/Hl7.Fhir.R5.Tests/Hl7.Fhir.R5.Tests.csproj
+++ b/src/Hl7.Fhir.R5.Tests/Hl7.Fhir.R5.Tests.csproj
@@ -29,7 +29,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.STU3.Tests/Hl7.Fhir.STU3.Tests.csproj b/src/Hl7.Fhir.STU3.Tests/Hl7.Fhir.STU3.Tests.csproj
index 0dad82ace2..141d0d6353 100644
--- a/src/Hl7.Fhir.STU3.Tests/Hl7.Fhir.STU3.Tests.csproj
+++ b/src/Hl7.Fhir.STU3.Tests/Hl7.Fhir.STU3.Tests.csproj
@@ -26,7 +26,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Serialization.R4.Tests/Hl7.Fhir.Serialization.R4.Tests.csproj b/src/Hl7.Fhir.Serialization.R4.Tests/Hl7.Fhir.Serialization.R4.Tests.csproj
index e68eca408f..e35555a465 100644
--- a/src/Hl7.Fhir.Serialization.R4.Tests/Hl7.Fhir.Serialization.R4.Tests.csproj
+++ b/src/Hl7.Fhir.Serialization.R4.Tests/Hl7.Fhir.Serialization.R4.Tests.csproj
@@ -26,7 +26,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Serialization.R4B.Tests/Hl7.Fhir.Serialization.R4B.Tests.csproj b/src/Hl7.Fhir.Serialization.R4B.Tests/Hl7.Fhir.Serialization.R4B.Tests.csproj
index b9860ded40..75a50e00d0 100644
--- a/src/Hl7.Fhir.Serialization.R4B.Tests/Hl7.Fhir.Serialization.R4B.Tests.csproj
+++ b/src/Hl7.Fhir.Serialization.R4B.Tests/Hl7.Fhir.Serialization.R4B.Tests.csproj
@@ -22,7 +22,7 @@
 	</ItemGroup>
 	
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Serialization.R5.Tests/Hl7.Fhir.Serialization.R5.Tests.csproj b/src/Hl7.Fhir.Serialization.R5.Tests/Hl7.Fhir.Serialization.R5.Tests.csproj
index e71d11dc24..602c923e02 100644
--- a/src/Hl7.Fhir.Serialization.R5.Tests/Hl7.Fhir.Serialization.R5.Tests.csproj
+++ b/src/Hl7.Fhir.Serialization.R5.Tests/Hl7.Fhir.Serialization.R5.Tests.csproj
@@ -26,7 +26,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Serialization.STU3.Tests/Hl7.Fhir.Serialization.STU3.Tests.csproj b/src/Hl7.Fhir.Serialization.STU3.Tests/Hl7.Fhir.Serialization.STU3.Tests.csproj
index bb9a5af20d..28aa809504 100644
--- a/src/Hl7.Fhir.Serialization.STU3.Tests/Hl7.Fhir.Serialization.STU3.Tests.csproj
+++ b/src/Hl7.Fhir.Serialization.STU3.Tests/Hl7.Fhir.Serialization.STU3.Tests.csproj
@@ -31,6 +31,6 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Specification.R4.Tests/Hl7.Fhir.Specification.R4.Tests.csproj b/src/Hl7.Fhir.Specification.R4.Tests/Hl7.Fhir.Specification.R4.Tests.csproj
index acf90bfff4..32769541d8 100644
--- a/src/Hl7.Fhir.Specification.R4.Tests/Hl7.Fhir.Specification.R4.Tests.csproj
+++ b/src/Hl7.Fhir.Specification.R4.Tests/Hl7.Fhir.Specification.R4.Tests.csproj
@@ -15,7 +15,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>
 
diff --git a/src/Hl7.Fhir.Specification.R4B.Tests/Hl7.Fhir.Specification.R4B.Tests.csproj b/src/Hl7.Fhir.Specification.R4B.Tests/Hl7.Fhir.Specification.R4B.Tests.csproj
index 55adec3c83..a5728d1a5e 100644
--- a/src/Hl7.Fhir.Specification.R4B.Tests/Hl7.Fhir.Specification.R4B.Tests.csproj
+++ b/src/Hl7.Fhir.Specification.R4B.Tests/Hl7.Fhir.Specification.R4B.Tests.csproj
@@ -15,7 +15,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>
 
diff --git a/src/Hl7.Fhir.Specification.R5.Tests/Hl7.Fhir.Specification.R5.Tests.csproj b/src/Hl7.Fhir.Specification.R5.Tests/Hl7.Fhir.Specification.R5.Tests.csproj
index 63c3be41e7..0c1a99dbc5 100644
--- a/src/Hl7.Fhir.Specification.R5.Tests/Hl7.Fhir.Specification.R5.Tests.csproj
+++ b/src/Hl7.Fhir.Specification.R5.Tests/Hl7.Fhir.Specification.R5.Tests.csproj
@@ -20,7 +20,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>
 
diff --git a/src/Hl7.Fhir.Specification.STU3.Tests/Hl7.Fhir.Specification.STU3.Tests.csproj b/src/Hl7.Fhir.Specification.STU3.Tests/Hl7.Fhir.Specification.STU3.Tests.csproj
index 1bfad5f2c2..81e86f57e0 100644
--- a/src/Hl7.Fhir.Specification.STU3.Tests/Hl7.Fhir.Specification.STU3.Tests.csproj
+++ b/src/Hl7.Fhir.Specification.STU3.Tests/Hl7.Fhir.Specification.STU3.Tests.csproj
@@ -19,7 +19,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/src/Hl7.Fhir.Support.Poco.Tests/Hl7.Fhir.Support.Poco.Tests.csproj b/src/Hl7.Fhir.Support.Poco.Tests/Hl7.Fhir.Support.Poco.Tests.csproj
index e583de383a..941c78aa45 100644
--- a/src/Hl7.Fhir.Support.Poco.Tests/Hl7.Fhir.Support.Poco.Tests.csproj
+++ b/src/Hl7.Fhir.Support.Poco.Tests/Hl7.Fhir.Support.Poco.Tests.csproj
@@ -18,7 +18,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 	</ItemGroup>
 	
 </Project>
diff --git a/src/Hl7.Fhir.Support.Tests/Hl7.Fhir.Support.Tests.csproj b/src/Hl7.Fhir.Support.Tests/Hl7.Fhir.Support.Tests.csproj
index 25673d59ef..361a8ac082 100644
--- a/src/Hl7.Fhir.Support.Tests/Hl7.Fhir.Support.Tests.csproj
+++ b/src/Hl7.Fhir.Support.Tests/Hl7.Fhir.Support.Tests.csproj
@@ -7,7 +7,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>
 	
diff --git a/src/Hl7.FhirPath.R4.Tests/Hl7.FhirPath.R4.Tests.csproj b/src/Hl7.FhirPath.R4.Tests/Hl7.FhirPath.R4.Tests.csproj
index 164de93fb4..c5dad233b9 100644
--- a/src/Hl7.FhirPath.R4.Tests/Hl7.FhirPath.R4.Tests.csproj
+++ b/src/Hl7.FhirPath.R4.Tests/Hl7.FhirPath.R4.Tests.csproj
@@ -20,7 +20,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>
 
diff --git a/src/Hl7.FhirPath.Tests/HL7.FhirPath.Tests.csproj b/src/Hl7.FhirPath.Tests/HL7.FhirPath.Tests.csproj
index 1abb561495..c89f36f1c7 100644
--- a/src/Hl7.FhirPath.Tests/HL7.FhirPath.Tests.csproj
+++ b/src/Hl7.FhirPath.Tests/HL7.FhirPath.Tests.csproj
@@ -8,7 +8,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="9.0.4" />
 	</ItemGroup>