diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 80539e7d..6b4e5157 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x]
+        node-version: [12.x, 14.x, 16.x]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/tests/component/class_style.test.ts b/tests/component/class_style.test.ts
index aab09df3..78be46e4 100644
--- a/tests/component/class_style.test.ts
+++ b/tests/component/class_style.test.ts
@@ -265,7 +265,8 @@ describe("class and style attributes with t-component", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'crash' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'crash'\)|Cannot read property 'crash' of undefined/g
+    expect(error.message).toMatch(regexp);
     expect(fixture.innerHTML).toBe("");
   });
 });
diff --git a/tests/component/error_handling.test.ts b/tests/component/error_handling.test.ts
index 1af4e9b9..f87e84c8 100644
--- a/tests/component/error_handling.test.ts
+++ b/tests/component/error_handling.test.ts
@@ -95,7 +95,7 @@ describe("component error handling (catchError)", () => {
         try {
           await super.render();
         } catch (e) {
-          expect(e.message).toBe("Cannot read property 'this' of undefined");
+          expect(e.message).toMatch(/Cannot read properties of undefined \(reading 'this'\)|Cannot read property 'this' of undefined/);
         }
       }
     }
@@ -359,7 +359,8 @@ describe("component error handling (catchError)", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'crash' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'crash'\)|Cannot read property 'crash' of undefined/g
+    expect(error.message).toMatch(regexp);
 
     expect(console.error).toBeCalledTimes(0);
     console.error = consoleError;
@@ -469,7 +470,8 @@ describe("component error handling (catchError)", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'crash' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'crash'\)|Cannot read property 'crash' of undefined/g
+    expect(error.message).toMatch(regexp);
 
     expect(console.error).toBeCalledTimes(0);
     console.error = consoleError;
@@ -495,7 +497,8 @@ describe("component error handling (catchError)", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'crash' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'crash'\)|Cannot read property 'crash' of undefined/g
+    expect(error.message).toMatch(regexp);
 
     expect(console.error).toBeCalledTimes(0);
     console.error = consoleError;
@@ -518,7 +521,8 @@ describe("component error handling (catchError)", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'y' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'y'\)|Cannot read property 'y' of undefined/g
+    expect(error.message).toMatch(regexp);
   });
 
   test("simple catchError", async () => {
diff --git a/tests/misc/portal.test.ts b/tests/misc/portal.test.ts
index e907a1c6..9cd1afa4 100644
--- a/tests/misc/portal.test.ts
+++ b/tests/misc/portal.test.ts
@@ -546,7 +546,8 @@ describe("Portal: Basic use and DOM placement", () => {
       error = e;
     }
     expect(error).toBeDefined();
-    expect(error.message).toBe("Cannot read property 'crash' of undefined");
+    const regexp = /Cannot read properties of undefined \(reading 'crash'\)|Cannot read property 'crash' of undefined/g
+    expect(error.message).toMatch(regexp);
   });
 
   test("portal manual unmount", async () => {