diff --git a/src/PoshNotify.psm1 b/src/PoshNotify.psm1
index c7bc283..37e8f2c 100644
--- a/src/PoshNotify.psm1
+++ b/src/PoshNotify.psm1
@@ -2,10 +2,18 @@ if($IsMacOS -and !(Get-Module MacNotify -list)) {
     Install-Module MacNotify
 }
 
+if($IsMacOS -and (Get-Module MacNotify -list)) {
+    Update-Module MacNotify
+}
+
 if($IsLinux -and !(Get-Module PSNotifySend -list)) {
     Install-Module PSNotifySend
 }
 
+if($IsLinux -and (Get-Module PSNotifySend -list)) {
+    Update-Module PSNotifySend
+}
+
 #Get public and private function definition files.
 $Public  = @( Get-ChildItem -Path $PSScriptRoot\Public\*.ps1 -ErrorAction SilentlyContinue )
 $Private = @( Get-ChildItem -Path $PSScriptRoot\Private\*.ps1 -ErrorAction SilentlyContinue )