diff --git a/lib/nimble_template/addons/variants/phoenix/gettext.ex b/lib/nimble_template/addons/variants/phoenix/gettext.ex
index 2ed5bf56..6e6771a7 100644
--- a/lib/nimble_template/addons/variants/phoenix/gettext.ex
+++ b/lib/nimble_template/addons/variants/phoenix/gettext.ex
@@ -17,32 +17,6 @@ defmodule NimbleTemplate.Addons.Phoenix.Gettext do
       """,
       """
         "gettext.extract-and-merge": ["gettext.extract --merge --no-fuzzy"],
-        "gettext.check": [
-          "gettext.extract-and-merge",
-          ~S/cmd git diff --no-ext-diff --quiet priv\\/gettext || echo "The localization files POs, POTs are NOT up-to-date."/
-        ],
-      """
-    )
-
-    Generator.replace_content(
-      "mix.exs",
-      """
-            "codebase.fix": [
-      """,
-      """
-            "codebase.fix": [
-              "gettext.extract-and-merge",
-      """
-    )
-
-    Generator.replace_content(
-      "mix.exs",
-      """
-        codebase: [
-      """,
-      """
-        codebase: [
-          "gettext.check",
       """
     )
 
diff --git a/priv/templates/nimble_template/.github/workflows/test.yml.eex b/priv/templates/nimble_template/.github/workflows/test.yml.eex
index 907deedd..6723132c 100644
--- a/priv/templates/nimble_template/.github/workflows/test.yml.eex
+++ b/priv/templates/nimble_template/.github/workflows/test.yml.eex
@@ -139,6 +139,15 @@ jobs:
       - name: Migrate database
         run: mix ecto.migrate
 
+      - name: Ensure that localization files (POs, POTs) are up-to-date.
+        run:
+          mix gettext.extract-and-merge;
+
+          if [ -n "$(git diff --exit-code priv/gettext/)" ]; then
+            echo "The localization files (POs, POTs) are NOT up-to-date, run \"mix gettext.extract-and-merge\" on your local and push again.";
+            exit 1;
+          fi
+
       - name: Run codebase check
         run: mix codebase
     
diff --git a/test/nimble_template/addons/variants/gettext_test.exs b/test/nimble_template/addons/variants/gettext_test.exs
index 35b197d2..e1743aa3 100644
--- a/test/nimble_template/addons/variants/gettext_test.exs
+++ b/test/nimble_template/addons/variants/gettext_test.exs
@@ -4,7 +4,7 @@ defmodule NimbleTemplate.Addons.Phoenix.GettextTest do
   describe "#apply/2" do
     @describetag required_addons: [:TestEnv]
 
-    test "injects gettext.extract-and-merge command to mix aliases and codebase.fix", %{
+    test "injects gettext.extract-and-merge command to mix aliases", %{
       project: project,
       test_project_path: test_project_path
     } do
@@ -16,29 +16,6 @@ defmodule NimbleTemplate.Addons.Phoenix.GettextTest do
                   "gettext.extract-and-merge": ["gettext.extract --merge --no-fuzzy"],
                  """
         end)
-
-        assert_file("mix.exs", fn file ->
-          assert file =~ """
-                   "gettext.check": [
-                     "gettext.extract-and-merge",
-                     ~S/cmd git diff --no-ext-diff --quiet priv\\/gettext || echo "The localization files POs, POTs are NOT up-to-date."/
-                   ],
-                 """
-        end)
-
-        assert_file("mix.exs", fn file ->
-          assert file =~ """
-                      "codebase.fix": [
-                         "gettext.extract-and-merge",
-                 """
-        end)
-
-        assert_file("mix.exs", fn file ->
-          assert file =~ """
-                   codebase: [
-                     "gettext.check",
-                 """
-        end)
       end)
     end
   end