diff --git a/README.md b/README.md
index 8b10be79dd..5c76743d61 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ Options:
   --no-open                                 Does not open the default browser.
   --open-target <value...>                  Opens specified page in browser.
   --open-app-name <value...>                Open specified browser.
-  --open-app <value...>                     Open specified browser. Deprecated: please use open.app.name/--open-app-name.
+  --open-app <value...>                     Open specified browser. Deprecated: please use '--open-app-name'.
   --open-reset                              Clear all items provided in 'open' configuration. Allows to configure dev server to open the browser(s) and page(s) after server had been started (set it to true to open your default browser).
   --open-target-reset                       Clear all items provided in 'open.target' configuration. Opens specified page in browser.
   --open-app-name-reset                     Clear all items provided in 'open.app.name' configuration. Open specified browser.
diff --git a/bin/cli-flags.js b/bin/cli-flags.js
index 3d8d07b78b..a956878103 100644
--- a/bin/cli-flags.js
+++ b/bin/cli-flags.js
@@ -807,12 +807,12 @@ module.exports = {
         type: "string",
         multiple: true,
         description:
-          "Open specified browser. Deprecated: please use open.app.name/--open-app-name.",
+          "Open specified browser. Deprecated: please use '--open-app-name'.",
         path: "open[].app",
       },
     ],
     description:
-      "Open specified browser. Deprecated: please use open.app.name/--open-app-name.",
+      "Open specified browser. Deprecated: please use '--open-app-name'.",
     simpleType: "string",
     multiple: true,
   },
diff --git a/lib/options.json b/lib/options.json
index e490cef1b1..4d1649a10f 100644
--- a/lib/options.json
+++ b/lib/options.json
@@ -581,7 +581,7 @@
             {
               "type": "string",
               "minLength": 1,
-              "description": "Open specified browser. Deprecated: please use open.app.name/--open-app-name."
+              "description": "Open specified browser. Deprecated: please use '--open-app-name'."
             }
           ],
           "description": "Open specified browser."
diff --git a/test/__snapshots__/validate-options.test.js.snap.webpack4 b/test/__snapshots__/validate-options.test.js.snap.webpack4
index 8b78bc6655..aec94bace2 100644
--- a/test/__snapshots__/validate-options.test.js.snap.webpack4
+++ b/test/__snapshots__/validate-options.test.js.snap.webpack4
@@ -521,7 +521,7 @@ exports[`options validate should throw an error on the "open" option with '{"app
        * options.open.app should be an object:
          object { name?, arguments? }
        * options.open.app should be a non-empty string.
-         -> Open specified browser. Deprecated: please use open.app.name/--open-app-name."
+         -> Open specified browser. Deprecated: please use '--open-app-name'."
 `;
 
 exports[`options validate should throw an error on the "open" option with '{"foo":"bar"}' value 1`] = `
diff --git a/test/__snapshots__/validate-options.test.js.snap.webpack5 b/test/__snapshots__/validate-options.test.js.snap.webpack5
index 8b78bc6655..aec94bace2 100644
--- a/test/__snapshots__/validate-options.test.js.snap.webpack5
+++ b/test/__snapshots__/validate-options.test.js.snap.webpack5
@@ -521,7 +521,7 @@ exports[`options validate should throw an error on the "open" option with '{"app
        * options.open.app should be an object:
          object { name?, arguments? }
        * options.open.app should be a non-empty string.
-         -> Open specified browser. Deprecated: please use open.app.name/--open-app-name."
+         -> Open specified browser. Deprecated: please use '--open-app-name'."
 `;
 
 exports[`options validate should throw an error on the "open" option with '{"foo":"bar"}' value 1`] = `
diff --git a/test/cli/__snapshots__/basic.test.js.snap.webpack4 b/test/cli/__snapshots__/basic.test.js.snap.webpack4
index e32c93f8a2..7e6703c814 100644
--- a/test/cli/__snapshots__/basic.test.js.snap.webpack4
+++ b/test/cli/__snapshots__/basic.test.js.snap.webpack4
@@ -116,7 +116,7 @@ Options:
   --no-open                                 Does not open the default browser.
   --open-target <value...>                  Opens specified page in browser.
   --open-app-name <value...>                Open specified browser.
-  --open-app <value...>                     Open specified browser. Deprecated: please use open.app.name/--open-app-name.
+  --open-app <value...>                     Open specified browser. Deprecated: please use '--open-app-name'.
   --open-reset                              Clear all items provided in 'open' configuration. Allows to configure dev server to open the browser(s) and page(s) after server had been started (set it to true to open your default browser).
   --open-target-reset                       Clear all items provided in 'open.target' configuration. Opens specified page in browser.
   --open-app-name-reset                     Clear all items provided in 'open.app.name' configuration. Open specified browser.
diff --git a/test/cli/__snapshots__/basic.test.js.snap.webpack5 b/test/cli/__snapshots__/basic.test.js.snap.webpack5
index 848eca57ff..973c40fa6e 100644
--- a/test/cli/__snapshots__/basic.test.js.snap.webpack5
+++ b/test/cli/__snapshots__/basic.test.js.snap.webpack5
@@ -114,7 +114,7 @@ Options:
   --no-open                                 Negative 'open' option.
   --open-target <value...>                  Opens specified page in browser.
   --open-app-name <value...>                Open specified browser.
-  --open-app <value...>                     Open specified browser. Deprecated: please use open.app.name/--open-app-name.
+  --open-app <value...>                     Open specified browser. Deprecated: please use '--open-app-name'.
   --open-reset                              Clear all items provided in 'open' configuration. Allows to configure dev server to open the browser(s) and page(s) after server had been started (set it to true to open your default browser).
   --open-target-reset                       Clear all items provided in 'open.target' configuration. Opens specified page in browser.
   --open-app-name-reset                     Clear all items provided in 'open.app.name' configuration. Open specified browser.