diff --git a/src/Hl7.Fhir.Validation.Legacy.Shared/Validation/FpConstraintValidationExtensions.cs b/src/Hl7.Fhir.Validation.Legacy.Shared/Validation/FpConstraintValidationExtensions.cs
index c826510..8d50462 100644
--- a/src/Hl7.Fhir.Validation.Legacy.Shared/Validation/FpConstraintValidationExtensions.cs
+++ b/src/Hl7.Fhir.Validation.Legacy.Shared/Validation/FpConstraintValidationExtensions.cs
@@ -96,7 +96,7 @@ public static OperationOutcome ValidateFp(this Validator v, string structureDefi
                 {
                     var compiled = getExecutableConstraint(v, outcome, instance, constraintElement);
                     success = compiled.IsTrue(instance,
-                        new FhirEvaluationContext(instance)
+                        new FhirEvaluationContext()
                         { ElementResolver = callExternalResolver });
                 }
                 catch (Exception e)
diff --git a/src/firely-net-sdk-tests.props b/src/firely-net-sdk-tests.props
index c5599ee..b033b57 100644
--- a/src/firely-net-sdk-tests.props
+++ b/src/firely-net-sdk-tests.props
@@ -4,7 +4,7 @@
 	</PropertyGroup>
 	
 	<PropertyGroup>
-		<FirelySdkVersion>5.9.1</FirelySdkVersion>
+		<FirelySdkVersion>5.10.0</FirelySdkVersion>
 	</PropertyGroup>
 
 	<PropertyGroup>
diff --git a/src/firely-net-sdk.props b/src/firely-net-sdk.props
index 9c9c7f3..3050fa5 100644
--- a/src/firely-net-sdk.props
+++ b/src/firely-net-sdk.props
@@ -23,7 +23,7 @@
 	</PropertyGroup>
 
 	<PropertyGroup>
-		<FirelySdkVersion>5.9.1</FirelySdkVersion>
+		<FirelySdkVersion>5.10.0</FirelySdkVersion>
 	</PropertyGroup>
 
 	<PropertyGroup>