diff --git a/modules/cmpapi/src/encoder/datatype/EncodableFibonacciIntegerRange.ts b/modules/cmpapi/src/encoder/datatype/EncodableFibonacciIntegerRange.ts
index ebac5ea..7bb59f7 100644
--- a/modules/cmpapi/src/encoder/datatype/EncodableFibonacciIntegerRange.ts
+++ b/modules/cmpapi/src/encoder/datatype/EncodableFibonacciIntegerRange.ts
@@ -37,6 +37,6 @@ export class EncodableFibonacciIntegerRange extends AbstractEncodableBitStringDa
 
   // Overriden
   public setValue(value: number[]) {
-    super.setValue([...new Set(value)].sort((n1, n2) => n1 - n2));
+    super.setValue(Array.from(new Set(value)).sort((n1, n2) => n1 - n2));
   }
 }
diff --git a/modules/cmpapi/src/encoder/datatype/EncodableFixedIntegerRange.ts b/modules/cmpapi/src/encoder/datatype/EncodableFixedIntegerRange.ts
index 3375427..3c06e70 100644
--- a/modules/cmpapi/src/encoder/datatype/EncodableFixedIntegerRange.ts
+++ b/modules/cmpapi/src/encoder/datatype/EncodableFixedIntegerRange.ts
@@ -37,6 +37,6 @@ export class EncodableFixedIntegerRange extends AbstractEncodableBitStringDataTy
 
   // Overriden
   public setValue(value: number[]) {
-    super.setValue([...new Set(value)].sort((n1, n2) => n1 - n2));
+    super.setValue(Array.from(new Set(value)).sort((n1, n2) => n1 - n2));
   }
 }
diff --git a/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFibonacciRange.ts b/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFibonacciRange.ts
index 1ffc865..fafedc6 100644
--- a/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFibonacciRange.ts
+++ b/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFibonacciRange.ts
@@ -69,6 +69,6 @@ export class EncodableOptimizedFibonacciRange extends AbstractEncodableBitString
 
   // Overriden
   public setValue(value: number[]) {
-    super.setValue([...new Set(value)].sort((n1, n2) => n1 - n2));
+    super.setValue(Array.from(new Set(value)).sort((n1, n2) => n1 - n2));
   }
 }
diff --git a/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFixedRange.ts b/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFixedRange.ts
index 30b6894..c27a7db 100644
--- a/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFixedRange.ts
+++ b/modules/cmpapi/src/encoder/datatype/EncodableOptimizedFixedRange.ts
@@ -69,6 +69,6 @@ export class EncodableOptimizedFixedRange extends AbstractEncodableBitStringData
 
   // Overriden
   public setValue(value: number[]) {
-    super.setValue([...new Set(value)].sort((n1, n2) => n1 - n2));
+    super.setValue(Array.from(new Set(value)).sort((n1, n2) => n1 - n2));
   }
 }