diff --git a/scripts/cd-docs.ps1 b/scripts/cd-docs.ps1
index 32cb8572..0178c181 100755
--- a/scripts/cd-docs.ps1
+++ b/scripts/cd-docs.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	if ($IsLinux -or $IsMacOS) {
 		if (-not(Test-Path "~/Documents" -pathType container)) {
diff --git a/scripts/cd-downloads.ps1 b/scripts/cd-downloads.ps1
index 7259c6a0..5c8ef6e6 100755
--- a/scripts/cd-downloads.ps1
+++ b/scripts/cd-downloads.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	if ($IsLinux -or $IsMacOS) {
 		if (-not(Test-Path "~/Downloads" -pathType container)) {
diff --git a/scripts/cd-fonts.ps1 b/scripts/cd-fonts.ps1
index b06f0e7e..7d5c9d81 100755
--- a/scripts/cd-fonts.ps1
+++ b/scripts/cd-fonts.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	$path = [Environment]::GetFolderPath('Fonts')
 	if (-not(Test-Path "$path" -pathType container)) {
diff --git a/scripts/cd-home.ps1 b/scripts/cd-home.ps1
index 0b5d6f22..7b2604ce 100755
--- a/scripts/cd-home.ps1
+++ b/scripts/cd-home.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	if (-not(Test-Path "~" -pathType container)) { throw "No home directory at: $path" }
 	$path = Resolve-Path "~"
diff --git a/scripts/cd-repo.ps1 b/scripts/cd-repo.ps1
index 31cf7c54..117093e7 100755
--- a/scripts/cd-repo.ps1
+++ b/scripts/cd-repo.ps1
@@ -14,6 +14,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 param([string]$folderName = "")
 
 try {
diff --git a/scripts/cd-repos.ps1 b/scripts/cd-repos.ps1
index f82e27ca..c69af1d6 100755
--- a/scripts/cd-repos.ps1
+++ b/scripts/cd-repos.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	if (Test-Path "~/Repos"              -pathType container) { $path = "~/Repos"
 	} elseif (Test-Path "~/repos"        -pathType container) { $path = "~/repos"
diff --git a/scripts/cd-trash.ps1 b/scripts/cd-trash.ps1
index faac9341..eef88a26 100755
--- a/scripts/cd-trash.ps1
+++ b/scripts/cd-trash.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 function GetCurrentUserSID { [CmdletBinding()] param()
 	Add-Type -AssemblyName System.DirectoryServices.AccountManagement
 	return ([System.DirectoryServices.AccountManagement.UserPrincipal]::Current).SID.Value
diff --git a/scripts/cd-windows.ps1 b/scripts/cd-windows.ps1
index e93c4c64..810388c0 100755
--- a/scripts/cd-windows.ps1
+++ b/scripts/cd-windows.ps1
@@ -12,6 +12,8 @@
 	Author: Markus Fleschutz | License: CC0
 #>
 
+#requires -version 5.1
+
 try {
 	if ($IsLinux -or $IsMacOS) { throw "This script requires a Windows operating system" }