diff --git a/RequiredModules.psd1 b/RequiredModules.psd1
index a352f062..9277fc50 100644
--- a/RequiredModules.psd1
+++ b/RequiredModules.psd1
@@ -9,7 +9,10 @@
 
     InvokeBuild                    = 'latest'
     PSScriptAnalyzer               = 'latest'
-    Pester                         = 'latest'
+    Pester                         = @{
+        Version    = '6.0.0-rc4'
+        Parameters = @{ AllowPrerelease = $true }
+    }
     Plaster                        = 'latest'
     ModuleBuilder                  = 'latest'
     ChangelogManagement            = 'latest'