diff --git a/test/colors/colors.test.js b/test/colors/colors.test.js
index 85815bc1d9e..7cbbee8fc1f 100644
--- a/test/colors/colors.test.js
+++ b/test/colors/colors.test.js
@@ -5,7 +5,7 @@ const { options: coloretteOptions } = require('colorette');
 
 describe('colors related tests', () => {
     it('should output by default', () => {
-        const { stderr, stdout, exitCode } = run(__dirname);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -14,7 +14,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from flags', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -26,6 +26,8 @@ describe('colors related tests', () => {
         const { stderr, stdout, exitCode } = run(__dirname, [
             '--stats=verbose',
             `--config=${resolve(__dirname, './no-stats.webpack.config.js')}`,
+            '--mode',
+            'production',
         ]);
 
         expect(stderr).toBeFalsy();
@@ -35,7 +37,12 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from flags and from configuration #2', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--config=stats-string.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, [
+            '--stats=verbose',
+            '--config=stats-string.webpack.config.js',
+            '--mode',
+            'production',
+        ]);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -44,7 +51,7 @@ describe('colors related tests', () => {
     });
 
     it('should disable colored output with --no-color', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--no-color']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--no-color', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -54,7 +61,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option and --color flags', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--color']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--stats=verbose', '--color', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -63,7 +70,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from the configuration', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=stats-string.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=stats-string.webpack.config.js', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -72,7 +79,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from the configuration #1', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=stats-boolean.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=stats-boolean.webpack.config.js', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -81,7 +88,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from the configuration #2', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=no-stats.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=no-stats.webpack.config.js', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -90,7 +97,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from the configuration #3', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-true.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-true.webpack.config.js', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -99,7 +106,7 @@ describe('colors related tests', () => {
     });
 
     it('should work with the "stats" option from the configuration #4', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-false.webpack.config.js']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-false.webpack.config.js', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -110,7 +117,7 @@ describe('colors related tests', () => {
     });
 
     it('should prioritize --color over colors in config', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-false.webpack.config.js', '--color']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-false.webpack.config.js', '--color', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -120,7 +127,12 @@ describe('colors related tests', () => {
     });
 
     it('should prioratize --no-color over colors in config', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=colors-true.webpack.config.js', '--no-color']);
+        const { stderr, stdout, exitCode } = run(__dirname, [
+            '--config=colors-true.webpack.config.js',
+            '--no-color',
+            '--mode',
+            'production',
+        ]);
 
         expect(stderr).toBeFalsy();
         const output = isWebpack5 ? 'successfully' : 'main.js';
@@ -131,7 +143,7 @@ describe('colors related tests', () => {
     });
 
     it('should work in multicompiler mode', () => {
-        const { stderr, stdout, exitCode } = run(__dirname, ['--config=multiple-configs.js', '--color']);
+        const { stderr, stdout, exitCode } = run(__dirname, ['--config=multiple-configs.js', '--color', '--mode', 'production']);
 
         expect(stderr).toBeFalsy();
         expect(exitCode).toBe(0);
diff --git a/test/watch/watch-flag.test.js b/test/watch/watch-flag.test.js
index e326fed48d8..fc6d3c153a8 100644
--- a/test/watch/watch-flag.test.js
+++ b/test/watch/watch-flag.test.js
@@ -10,7 +10,7 @@ const wordsInStatsv5 = ['asset', 'index.js', 'compiled successfully'];
 
 describe('--watch flag', () => {
     it('should recompile upon file change', (done) => {
-        const proc = runAndGetWatchProc(__dirname, ['--watch'], false, '', true);
+        const proc = runAndGetWatchProc(__dirname, ['--watch', '--mode', 'production'], false, '', true);
         let semaphore = 0;
         proc.stdout.on('data', (chunk) => {
             const data = stripAnsi(chunk.toString());
@@ -45,7 +45,7 @@ describe('--watch flag', () => {
     });
 
     it('should print compilation lifecycle', (done) => {
-        const proc = runAndGetWatchProc(__dirname, ['--watch'], false, '', true);
+        const proc = runAndGetWatchProc(__dirname, ['--watch', '--mode', 'production'], false, '', true);
         let semaphore = 0;
         proc.stdout.on('data', (chunk) => {
             const data = stripAnsi(chunk.toString());