diff --git a/packages/@webex/internal-plugin-mercury/package.json b/packages/@webex/internal-plugin-mercury/package.json
index 93d5f4a4f1a..ecec64428a6 100644
--- a/packages/@webex/internal-plugin-mercury/package.json
+++ b/packages/@webex/internal-plugin-mercury/package.json
@@ -62,6 +62,6 @@
     "test": "yarn test:style && yarn test:unit && yarn test:integration && yarn test:browser",
     "test:browser": "webex-legacy-tools test --integration --unit --runner karma",
     "test:style": "eslint ./src/**/*.*",
-    "test:unit": "webex-legacy-tools test --unit --runner jest"
+    "test:unit": "webex-legacy-tools test --unit --runner mocha"
   }
 }
diff --git a/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury-events.js b/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury-events.js
index 58040bd99bb..599d61e19a6 100644
--- a/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury-events.js
+++ b/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury-events.js
@@ -142,7 +142,7 @@ describe('plugin-mercury', () => {
         });
       });
 
-      describe.skip('when `mercury.buffer_state` is received', () => {
+      describe('when `mercury.buffer_state` is received', () => {
         // This test is here because the buffer states message may arrive before
         // the mercury Promise resolves.
         it('gets emitted', (done) => {
diff --git a/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury.js b/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury.js
index 8a8378f9ea7..397a44d530f 100644
--- a/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury.js
+++ b/packages/@webex/internal-plugin-mercury/test/unit/spec/mercury.js
@@ -381,7 +381,7 @@ describe('plugin-mercury', () => {
         });
       });
 
-      describe.skip('when webSocketUrl is provided', () => {
+      describe('when webSocketUrl is provided', () => {
         it('connects to Mercury with provided url', () => {
           const webSocketUrl = 'ws://providedurl.com';
           const promise = mercury.connect(webSocketUrl);
@@ -403,7 +403,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('Websocket proxy agent', () => {
+    describe('Websocket proxy agent', () => {
       afterEach(() => {
         delete webex.config.defaultMercuryOptions;
       });
@@ -451,7 +451,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('#disconnect()', () => {
+    describe('#disconnect()', () => {
       it('disconnects the WebSocket', () =>
         mercury
           .connect()
diff --git a/packages/@webex/internal-plugin-mercury/test/unit/spec/socket.js b/packages/@webex/internal-plugin-mercury/test/unit/spec/socket.js
index 8224963ea2e..b34f09bdc82 100644
--- a/packages/@webex/internal-plugin-mercury/test/unit/spec/socket.js
+++ b/packages/@webex/internal-plugin-mercury/test/unit/spec/socket.js
@@ -40,8 +40,10 @@ describe('plugin-mercury', () => {
     });
 
     beforeEach(() => {
-      sinon.stub(Socket, 'getWebSocketConstructor').callsFake(() => function (...args) {
-        mockWebSocket = new MockWebSocket(...args);
+      sinon.stub(Socket, 'getWebSocketConstructor').callsFake(
+        () =>
+          function (...args) {
+            mockWebSocket = new MockWebSocket(...args);
 
             return mockWebSocket;
           }
@@ -69,7 +71,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('#open()', () => {
+    describe('#open()', () => {
       let socket;
 
       beforeEach(() => {
@@ -213,7 +215,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('#open()', () => {
+    describe('#open()', () => {
       it('requires a url parameter', () => {
         const s = new Socket();
 
@@ -566,7 +568,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('#onclose()', () => {
+    describe('#onclose()', () => {
       it('stops further ping checks', () => {
         socket._ping.resetHistory();
         assert.notCalled(socket._ping);
@@ -750,7 +752,7 @@ describe('plugin-mercury', () => {
       });
     });
 
-    describe.skip('#_ping()', () => {
+    describe('#_ping()', () => {
       let id;
 
       beforeEach(() => {