diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bd2448d13..719eddbbfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ### Bug Fixes
 
 - **core:** Load config file before initialization ([#4932](https://github.com/ScoopInstaller/Scoop/issues/4932))
+- **core:** Allow to use '_' and '.' in bucket name ([#4952](https://github.com/ScoopInstaller/Scoop/pull/4952))
 - **depends:** Avoid digits in archive file extension (except for .7z and .001) ([#4915](https://github.com/ScoopInstaller/Scoop/issues/4915))
 - **bucket:** Don't check remote URL of non-git buckets ([#4923](https://github.com/ScoopInstaller/Scoop/issues/4923))
 - **bucket:** Don't write message OK before bucket is cloned ([#4925](https://github.com/ScoopInstaller/Scoop/issues/4925))
diff --git a/lib/core.ps1 b/lib/core.ps1
index 3199142814..132b56f61c 100644
--- a/lib/core.ps1
+++ b/lib/core.ps1
@@ -895,7 +895,7 @@ function applist($apps, $global) {
 }
 
 function parse_app([string] $app) {
-    if($app -match '(?:(?<bucket>[a-zA-Z0-9-]+)\/)?(?<app>.*\.json$|[a-zA-Z0-9-_.]+)(?:@(?<version>.*))?') {
+    if($app -match '(?:(?<bucket>[a-zA-Z0-9-_.]+)\/)?(?<app>.*\.json$|[a-zA-Z0-9-_.]+)(?:@(?<version>.*))?') {
         return $matches['app'], $matches['bucket'], $matches['version']
     }
     return $app, $null, $null