diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2da3e3c735..51700d8263 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.8.4.
 
 ## 1.1.5 - 15 Mar 2022
 
diff --git a/lib/defaults.json b/lib/defaults.json
index 173d22d0c4..2d778b0f28 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,3 +1,3 @@
 {
-    "bundleVersion": "codeql-bundle-20220311"
+    "bundleVersion": "codeql-bundle-20220321"
 }
diff --git a/src/defaults.json b/src/defaults.json
index 840503e5cf..1351bf52c9 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,3 +1,3 @@
 {
-  "bundleVersion": "codeql-bundle-20220311"
+  "bundleVersion": "codeql-bundle-20220321"
 }