diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/search/230_interval_query.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/search/230_interval_query.yml
index 93e73764d8e92..0286d3caf66b8 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/search/230_interval_query.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/search/230_interval_query.yml
@@ -44,8 +44,8 @@ setup:
 ---
 "Test regexp, explicit case sensitive":
   - skip:
-      version: " - 1.99.99"
-      reason: "case_insensitive introduced in 2.0"
+      version: " - 1.2.99"
+      reason: "case_insensitive introduced in 1.3"
   - do:
       search:
         index: test
@@ -61,8 +61,8 @@ setup:
 ---
 "Test regexp, explicit case insensitive":
   - skip:
-      version: " - 1.99.99"
-      reason: "case_insensitive introduced in 2.0"
+      version: " - 1.2.99"
+      reason: "case_insensitive introduced in 1.3"
   - do:
       search:
         index: test
diff --git a/server/src/main/java/org/opensearch/index/query/IntervalsSourceProvider.java b/server/src/main/java/org/opensearch/index/query/IntervalsSourceProvider.java
index ab2e65b3b65c7..b53dfc32d7006 100644
--- a/server/src/main/java/org/opensearch/index/query/IntervalsSourceProvider.java
+++ b/server/src/main/java/org/opensearch/index/query/IntervalsSourceProvider.java
@@ -709,7 +709,7 @@ public Regexp(StreamInput in) throws IOException {
             this.flags = in.readVInt();
             this.useField = in.readOptionalString();
             this.maxExpansions = in.readOptionalVInt();
-            if (in.getVersion().onOrAfter(Version.V_2_0_0)) {
+            if (in.getVersion().onOrAfter(Version.V_1_3_0)) {
                 this.caseInsensitive = in.readBoolean();
             } else {
                 this.caseInsensitive = false;
@@ -783,7 +783,7 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeVInt(flags);
             out.writeOptionalString(useField);
             out.writeOptionalVInt(maxExpansions);
-            if (out.getVersion().onOrAfter(Version.V_2_0_0)) {
+            if (out.getVersion().onOrAfter(Version.V_1_3_0)) {
                 out.writeBoolean(caseInsensitive);
             }
         }