diff --git a/docs/reference-guides/data/data-core.md b/docs/reference-guides/data/data-core.md
index ef10d8c4c36298..7818ccae128738 100644
--- a/docs/reference-guides/data/data-core.md
+++ b/docs/reference-guides/data/data-core.md
@@ -4,7 +4,7 @@ Namespace: `core`.
 
 ## Selectors
 
-<!-- START TOKEN(Autogenerated selectors|../../../packages/core-data/src/selectors.js) -->
+<!-- START TOKEN(Autogenerated selectors|../../../packages/core-data/src/selectors.ts) -->
 
 ### canUser
 
@@ -561,7 +561,7 @@ _Returns_
 
 -   `boolean`: Whether the entity record is saving or not.
 
-<!-- END TOKEN(Autogenerated selectors|../../../packages/core-data/src/selectors.js) -->
+<!-- END TOKEN(Autogenerated selectors|../../../packages/core-data/src/selectors.ts) -->
 
 ## Actions
 
diff --git a/packages/core-data/README.md b/packages/core-data/README.md
index fd7f795b5d900a..ea5395dbde413f 100644
--- a/packages/core-data/README.md
+++ b/packages/core-data/README.md
@@ -251,7 +251,7 @@ an entity record, if any.
 
 The following selectors are available on the object returned by `wp.data.select( 'core' )`:
 
-<!-- START TOKEN(Autogenerated selectors|src/selectors.js) -->
+<!-- START TOKEN(Autogenerated selectors|src/selectors.ts) -->
 
 ### canUser
 
@@ -808,7 +808,7 @@ _Returns_
 
 -   `boolean`: Whether the entity record is saving or not.
 
-<!-- END TOKEN(Autogenerated selectors|src/selectors.js) -->
+<!-- END TOKEN(Autogenerated selectors|src/selectors.ts) -->
 
 ## Contributing to this package
 
diff --git a/packages/core-data/src/selectors.js b/packages/core-data/src/selectors.ts
similarity index 100%
rename from packages/core-data/src/selectors.js
rename to packages/core-data/src/selectors.ts