diff --git a/r4/fhirpath/tests-fhir-r4.xml b/r4/fhirpath/tests-fhir-r4.xml
index a43ef4f2..a8c581be 100644
--- a/r4/fhirpath/tests-fhir-r4.xml
+++ b/r4/fhirpath/tests-fhir-r4.xml
@@ -474,7 +474,7 @@ Any text enclosed within is ignored
 		<test name="testQuantity1" inputfile="patient-example.xml"><expression>4.0000 'g' = 4000.0 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity2" inputfile="patient-example.xml"><expression>4 'g' ~ 4000 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity3" inputfile="patient-example.xml"><expression>4 'g' != 4040 'mg'</expression><output type="boolean">true</output></test>
-		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' ~ 4040 'mg'</expression><output type="boolean">true</output></test>
+		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' !~ 4040 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity5" inputfile="patient-example.xml"><expression>7 days = 1 week</expression><output type="boolean">true</output></test>
 		<test name="testQuantity6" inputfile="patient-example.xml"><expression>7 days = 1 'wk'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity7" inputfile="patient-example.xml"><expression>6 days &lt; 1 week</expression><output type="boolean">true</output></test>
diff --git a/r4b/fhirpath/tests-fhir-r4b.xml b/r4b/fhirpath/tests-fhir-r4b.xml
index 761e7d2e..3541d20f 100644
--- a/r4b/fhirpath/tests-fhir-r4b.xml
+++ b/r4b/fhirpath/tests-fhir-r4b.xml
@@ -474,7 +474,7 @@ Any text enclosed within is ignored
 		<test name="testQuantity1" inputfile="patient-example.xml"><expression>4.0000 'g' = 4000.0 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity2" inputfile="patient-example.xml"><expression>4 'g' ~ 4000 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity3" inputfile="patient-example.xml"><expression>4 'g' != 4040 'mg'</expression><output type="boolean">true</output></test>
-		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' ~ 4040 'mg'</expression><output type="boolean">true</output></test>
+		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' !~ 4040 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity5" inputfile="patient-example.xml"><expression>7 days = 1 week</expression><output type="boolean">true</output></test>
 		<test name="testQuantity6" inputfile="patient-example.xml"><expression>7 days = 1 'wk'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity7" inputfile="patient-example.xml"><expression>6 days &lt; 1 week</expression><output type="boolean">true</output></test>
diff --git a/r5/fhirpath/tests-fhir-r5.xml b/r5/fhirpath/tests-fhir-r5.xml
index f79f51df..799b9d08 100644
--- a/r5/fhirpath/tests-fhir-r5.xml
+++ b/r5/fhirpath/tests-fhir-r5.xml
@@ -607,7 +607,7 @@ Any text enclosed within is ignored
 		<test name="testQuantity1" inputfile="patient-example.xml"><expression>4.0000 'g' = 4000.0 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity2" inputfile="patient-example.xml"><expression>4 'g' ~ 4000 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity3" inputfile="patient-example.xml"><expression>4 'g' != 4040 'mg'</expression><output type="boolean">true</output></test>
-		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' ~ 4040 'mg'</expression><output type="boolean">true</output></test>
+		<test name="testQuantity4" inputfile="patient-example.xml"><expression>4 'g' !~ 4040 'mg'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity5" inputfile="patient-example.xml"><expression>7 days = 1 week</expression><output type="boolean">true</output></test>
 		<test name="testQuantity6" inputfile="patient-example.xml"><expression>7 days = 1 'wk'</expression><output type="boolean">true</output></test>
 		<test name="testQuantity7" inputfile="patient-example.xml"><expression>6 days &lt; 1 week</expression><output type="boolean">true</output></test>