diff --git a/packages/driver/cypress/integration/commands/actions/attachFile_spec.js b/packages/driver/cypress/integration/commands/actions/attachFile_spec.js
index 925da9df8304..925aae22f9a7 100644
--- a/packages/driver/cypress/integration/commands/actions/attachFile_spec.js
+++ b/packages/driver/cypress/integration/commands/actions/attachFile_spec.js
@@ -255,7 +255,8 @@ describe('src/cy/commands/actions/attachFile', () => {
       defaultCommandTimeout: 50,
     }, () => {
       it('is a child command', (done) => {
-        cy.on('fail', () => {
+        cy.on('fail', (err) => {
+          expect(err.message).to.include('A child command must be chained after a parent because it operates on a previous subject.')
           done()
         })
 
@@ -263,7 +264,8 @@ describe('src/cy/commands/actions/attachFile', () => {
       })
 
       it('throws when non dom subject', (done) => {
-        cy.on('fail', () => {
+        cy.on('fail', (err) => {
+          expect(err.message).to.include('`cy.attachFile()` failed because it requires a DOM element.')
           done()
         })
 
diff --git a/system-tests/package.json b/system-tests/package.json
index fcfe48d88f0b..85dc40457c55 100644
--- a/system-tests/package.json
+++ b/system-tests/package.json
@@ -42,7 +42,7 @@
     "cookie-parser": "1.4.5",
     "cors": "2.8.5",
     "dayjs": "^1.9.3",
-    "debug": "4.3.2",
+    "debug": "^4.3.2",
     "execa": "1.0.0",
     "express": "4.17.1",
     "express-session": "1.16.1",