diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84613ca..e6a03df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 All notable changes to this project will be documented in this file.
 
 ## [1.46.0]
-- Improved AWS rule
+- Improved rules: AWS, pem
 
 ## [1.45.0]
 - Added `--repo-artifacts` flag to scan repository issues, gists/snippets, and wikis when cloning via `--git-url`
diff --git a/data/rules/pem.yml b/data/rules/pem.yml
index 390171d..00d93c6 100644
--- a/data/rules/pem.yml
+++ b/data/rules/pem.yml
@@ -55,6 +55,7 @@ rules:
         (?: LS0tLS1CRUdJTiBSU0EgUFJJVkFURSBLRVktLS0t             (?# prefix of base64 encoding of `-----BEGIN RSA PRIVATE KEY-----` )
           | LS0tLS1CRUdJTiBEU0EgUFJJVkFURSBLRVktLS0t             (?# prefix of base64 encoding of `-----BEGIN DSA PRIVATE KEY-----` )
           | LS0tLS1CRUdJTiBFQyBQUklWQVRFIEtFWS0tLS0t             (?# prefix of base64 encoding of `-----BEGIN EC PRIVATE KEY-----` )
+          | LS0tLS1CRUdJTiBQUklWQVRFIEtFWS0tLS0t                 (?# prefix of base64 encoding of `-----BEGIN PRIVATE KEY-----` )
           )
         [a-zA-Z0-9+/=]{50,}
       )