diff --git a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/ParseContext.kt b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/ParseContext.kt
index 8b13ba8af68..af7e75e660f 100644
--- a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/ParseContext.kt
+++ b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/ParseContext.kt
@@ -47,7 +47,7 @@ class ParseContext(
     val subNameValueEvaluateInfo: SubNameValueEvaluateInfo? = null
 ) {
     val extensionFunctions = TreeMap<String, IFunctionInfo>(String.CASE_INSENSITIVE_ORDER)
-    val extensionNamedValues = TreeMap<String, INamedValueInfo>(String.CASE_INSENSITIVE_ORDER)
+    val extensionNamedValues = TreeMap<String, INamedValueInfo>()
     val lexicalAnalyzer: LexicalAnalyzer
     val operands = ArrayDeque<ExpressionNode>()
     val operators = ArrayDeque<Token>()
diff --git a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/DictionaryContextData.kt b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/DictionaryContextData.kt
index daffd7ec4fb..c65175af4b1 100644
--- a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/DictionaryContextData.kt
+++ b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/DictionaryContextData.kt
@@ -59,7 +59,7 @@ class DictionaryContextData :
     private val indexLookup: MutableMap<String, Int>
         get() {
             if (mIndexLookup == null) {
-                mIndexLookup = TreeMap<String, Int>(String.CASE_INSENSITIVE_ORDER)
+                mIndexLookup = TreeMap<String, Int>()
                 if (mList.isNotEmpty()) {
                     mList.forEachIndexed { index, pair ->
                         mIndexLookup!![pair.key] = index
diff --git a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/RuntimeDictionaryContextData.kt b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/RuntimeDictionaryContextData.kt
index c9998db3aff..0241c17eb08 100644
--- a/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/RuntimeDictionaryContextData.kt
+++ b/src/backend/ci/core/common/common-expression/src/main/kotlin/com/tencent/devops/common/expression/context/RuntimeDictionaryContextData.kt
@@ -86,7 +86,7 @@ class RuntimeDictionaryContextData(private val runtimeNamedValue: RuntimeNamedVa
     private val indexLookup: MutableMap<String, Int>
         get() {
             if (mIndexLookup == null) {
-                mIndexLookup = TreeMap<String, Int>(String.CASE_INSENSITIVE_ORDER)
+                mIndexLookup = TreeMap<String, Int>()
                 if (mList.isNotEmpty()) {
                     mList.forEachIndexed { index, pair ->
                         mIndexLookup!![pair.key] = index