diff --git a/core/assets/scaffold/files/modules.README.txt b/core/assets/scaffold/files/modules.README.txt
index 529c31b2ba23f2281d9276e05dfb48ecda265395..249e8177ac230814f80fd44ea0acfadf2e6a2bb1 100644
--- a/core/assets/scaffold/files/modules.README.txt
+++ b/core/assets/scaffold/files/modules.README.txt
@@ -38,5 +38,5 @@ pattern may be used to restrict modules to a specific site instance.
 MORE INFORMATION
 ----------------
 
-Refer to the “Developing for Drupal” section of the README.txt in the Drupal
+Refer to the “Developing for Drupal” section of the README.md in the Drupal
 root directory for further information on extending Drupal with custom modules.
diff --git a/core/assets/scaffold/files/profiles.README.txt b/core/assets/scaffold/files/profiles.README.txt
index b0f0c0bac99138cd636c0e865eaa2354cc6531a3..6d11a51114c4598e66501df0864ace82c2576950 100644
--- a/core/assets/scaffold/files/profiles.README.txt
+++ b/core/assets/scaffold/files/profiles.README.txt
@@ -24,5 +24,5 @@ available to all sites during their initial site installation.
 MORE INFORMATION
 ----------------
 
-Refer to the "Installation profiles" section of the README.txt in the Drupal
+Refer to the "Installation profiles" section of the README.md in the Drupal
 root directory for further information on extending Drupal with custom profiles.
diff --git a/core/assets/scaffold/files/themes.README.txt b/core/assets/scaffold/files/themes.README.txt
index 039aaaf83a06ad33744027fa4ec95e8cc852e765..1e00ead6d85b3624bb7f3c5280c5a551c6ef84b7 100644
--- a/core/assets/scaffold/files/themes.README.txt
+++ b/core/assets/scaffold/files/themes.README.txt
@@ -26,6 +26,6 @@ pattern may be used to restrict themes to a specific site instance.
 MORE INFORMATION
 -----------------
 
-Refer to the "Appearance" section of the README.txt in the Drupal root directory
+Refer to the "Appearance" section of the README.md in the Drupal root directory
 for further information on customizing the appearance of Drupal with custom
 themes.
diff --git a/modules/README.txt b/modules/README.txt
index 529c31b2ba23f2281d9276e05dfb48ecda265395..249e8177ac230814f80fd44ea0acfadf2e6a2bb1 100644
--- a/modules/README.txt
+++ b/modules/README.txt
@@ -38,5 +38,5 @@ pattern may be used to restrict modules to a specific site instance.
 MORE INFORMATION
 ----------------
 
-Refer to the “Developing for Drupal” section of the README.txt in the Drupal
+Refer to the “Developing for Drupal” section of the README.md in the Drupal
 root directory for further information on extending Drupal with custom modules.
diff --git a/profiles/README.txt b/profiles/README.txt
index b0f0c0bac99138cd636c0e865eaa2354cc6531a3..6d11a51114c4598e66501df0864ace82c2576950 100644
--- a/profiles/README.txt
+++ b/profiles/README.txt
@@ -24,5 +24,5 @@ available to all sites during their initial site installation.
 MORE INFORMATION
 ----------------
 
-Refer to the "Installation profiles" section of the README.txt in the Drupal
+Refer to the "Installation profiles" section of the README.md in the Drupal
 root directory for further information on extending Drupal with custom profiles.
diff --git a/themes/README.txt b/themes/README.txt
index 039aaaf83a06ad33744027fa4ec95e8cc852e765..1e00ead6d85b3624bb7f3c5280c5a551c6ef84b7 100644
--- a/themes/README.txt
+++ b/themes/README.txt
@@ -26,6 +26,6 @@ pattern may be used to restrict themes to a specific site instance.
 MORE INFORMATION
 -----------------
 
-Refer to the "Appearance" section of the README.txt in the Drupal root directory
+Refer to the "Appearance" section of the README.md in the Drupal root directory
 for further information on customizing the appearance of Drupal with custom
 themes.