diff --git a/cypress/e2e/entities.cy.js b/cypress/e2e/entities.cy.js
index 907b925..c3d1836 100644
--- a/cypress/e2e/entities.cy.js
+++ b/cypress/e2e/entities.cy.js
@@ -48,11 +48,6 @@ describe("Entity initialization", () => {
             .which.is.an("array")
             .and.is.deep.equal([400, 500, 600, 700, 800])
         )
-        it("has someSet with numbers", () => expect(entity)
-            .to.have.property("someSet")
-            .which.is.instanceOf(Set)
-            .and.is.deep.equal(new Set([10, 20, 30, 40, 50, 60, 70]))
-        )
         it("is equal to another empty SimpleEntity", () => expect(entity.equals(new SimpleEntity()))
             .to.be.true
         )
@@ -70,7 +65,6 @@ describe("Entity initialization", () => {
             someBoolean2: false,
             someObjectString: new String("delta"),
             someArray: [-1, -2, -3],
-            someSet: new Set([-10, -20, -30]),
         })
         const other2 = new SimpleEntity({
             someNumber: 123,
@@ -80,7 +74,6 @@ describe("Entity initialization", () => {
             someBoolean2: false,
             someObjectString: "delta",
             someArray: [-1, -2, -3],
-            someSet: new Set([-10, -20, -30]),
         })
         it("compares equal entities as equal", () => expect(other1.equals(other2))
             .to.be.true
diff --git a/cypress/e2e/utility.cy.js b/cypress/e2e/utility.cy.js
index 99eb8d1..e181bc8 100644
--- a/cypress/e2e/utility.cy.js
+++ b/cypress/e2e/utility.cy.js
@@ -69,34 +69,6 @@ describe("Utility class", () => {
                 [-2, "Alpha", new String("beta"), new Number(40), [1, 2, 3]],
                 [new Number(-2), new String("alpha"), new String("beta"), new Number(40), new Array(1, 2, 3)]
             )).to.be.false // Second element is different
-            expect(Utility.equals(
-                new Set(["alpha", -67, new String("beta"), [1, 2, 3]]),
-                new Set([-67, "beta", new String("alpha"), [1, 2, 3]])
-            )).to.be.true
-            expect(Utility.equals( // First element has capital Beta
-                new Set(["alpha", -67, new String("Beta"), [1, 2, 3]]),
-                new Set([-67, "beta", new String("alpha"), [1, 2, 3]])
-            )).to.be.false
-            expect(Utility.equals( // First element has capital Beta
-                new Set(["alpha", -67, new String("beta"), [1, 2, 3]]),
-                new Set([-67, "beta", new String("alpha"), [1, 3]])
-            )).to.be.false
-            expect(Utility.equals( // Different number of elements
-                new Set([2, 4, 6, 8]),
-                new Set([8, 6, 4])
-            )).to.be.false
-            expect(Utility.equals( // Second element has different type
-                new Set([4, "6", 8]),
-                new Set([8, 6, 4])
-            )).to.be.false
-            expect(Utility.equals(
-                new Set([new IEntity({ a: "alpha", b: new String("beta") })]),
-                new Set([new IEntity({ a: "alpha", b: new String("beta") })]),
-            )).to.be.true
-            expect(Utility.equals( // First a key has a number
-                new Set([new IEntity({ a: 2, b: new String("beta") })]),
-                new Set([new IEntity({ a: "alpha", b: new String("beta") })]),
-            )).to.be.false
         })
         it("isValueOfType method test", () => {
             expect(Utility.isValueOfType(34, Number)).to.be.true
diff --git a/js/Utility.js b/js/Utility.js
index 799bd21..0c4e203 100755
--- a/js/Utility.js
+++ b/js/Utility.js
@@ -175,14 +175,6 @@ export default class Utility {
         if (a instanceof Array && b instanceof Array) {
             return a.length === b.length && a.every((value, i) => Utility.equals(value, b[i]))
         }
-        if (a instanceof Set && b instanceof Set) {
-            if (a.size !== b.size) {
-                return false
-            }
-            a = [...a]
-            b = [...b]
-            return a.every(first => /** @type {Array} */(b).some(second => Utility.equals(first, second)))
-        }
         return false
     }