diff --git a/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/TextAnalytics.json b/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/TextAnalytics.json
index 3f32ac31c0a2..5ed41b4f1b6c 100644
--- a/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/TextAnalytics.json
+++ b/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/TextAnalytics.json
@@ -1871,8 +1871,8 @@
           "description": "Describes any conditionality on the entity.",
           "type": "string",
           "enum": [
-            "Hypothetical",
-            "Conditional"
+            "hypothetical",
+            "conditional"
           ],
           "x-ms-enum": {
             "name": "Conditionality",
@@ -1883,11 +1883,11 @@
           "description": "Describes the entities certainty and polarity.",
           "type": "string",
           "enum": [
-            "Positive",
-            "PositivePossible",
-            "NeutralPossible",
-            "NegativePossible",
-            "Negative"
+            "positive",
+            "positivePossible",
+            "neutralPossible",
+            "negativePossible",
+            "negative"
           ],
           "x-ms-enum": {
             "name": "Certainty",
diff --git a/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/examples/SuccessfulHealthStatusRequest.json b/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/examples/SuccessfulHealthStatusRequest.json
index 454fbf9efa35..1bb24e508072 100644
--- a/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/examples/SuccessfulHealthStatusRequest.json
+++ b/specification/cognitiveservices/data-plane/TextAnalytics/preview/v3.1-preview.4/examples/SuccessfulHealthStatusRequest.json
@@ -32,7 +32,7 @@
                   "category": "MedicationName",
                   "confidenceScore": 1.0,
                   "assertion": {
-                    "certainty": "Positive"
+                    "certainty": "positive"
                   },
                   "links": [
                     {