diff --git a/HISTORY.md b/HISTORY.md
index a3342790..97427a29 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [v4](https://github.com/tj-actions/changed-files/tree/v4) (2021-04-23)
+
+[Full Changelog](https://github.com/tj-actions/changed-files/compare/v3.3...v4)
+
+**Implemented enhancements:**
+
+- Feature request [\#15](https://github.com/tj-actions/changed-files/issues/15)
+- Added support for push events [\#21](https://github.com/tj-actions/changed-files/pull/21) ([jackton1](https://github.com/jackton1))
+
+**Merged pull requests:**
+
+- Upgraded to v3.3 [\#19](https://github.com/tj-actions/changed-files/pull/19) ([jackton1](https://github.com/jackton1))
+
 ## [v3.3](https://github.com/tj-actions/changed-files/tree/v3.3) (2021-04-20)
 
 [Full Changelog](https://github.com/tj-actions/changed-files/compare/v3.2...v3.3)
diff --git a/README.md b/README.md
index 35d32a6e..78339ea4 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ jobs:
           fetch-depth: 0  # OR "2" -> To retrieve the preceding commit.
       - name: Get changed files
         id: changed_files
-        uses: tj-actions/changed-files@v3.3
+        uses: tj-actions/changed-files@v4
 ```
 
 
@@ -57,7 +57,7 @@ jobs:
       - uses: actions/checkout@v2
       - name: Get changed files
         id: changed_files
-        uses: tj-actions/changed-files@v3.3
+        uses: tj-actions/changed-files@v4
 ```
 
 
@@ -69,11 +69,11 @@ jobs:
       - uses: actions/checkout@v2
       - name: Get changed files using defaults
         id: changed_files
-        uses: tj-actions/changed-files@v3.3
+        uses: tj-actions/changed-files@v4
       
       - name: Get changed files using a comma separator
         id: changed_files_comma
-        uses: tj-actions/changed-files@v3.3
+        uses: tj-actions/changed-files@v4
         with:
           separator: ","
        
@@ -107,7 +107,7 @@ jobs:
       
       - name: Get changed files
         id: changed_files
-        uses: tj-actions/changed-files@v3.3
+        uses: tj-actions/changed-files@v4
 
       - name: Pre-commit
         uses: pre-commit/action@v2.0.0