diff --git a/PowerShellEditorServices.build.ps1 b/PowerShellEditorServices.build.ps1
index 365049e16..0304becc3 100644
--- a/PowerShellEditorServices.build.ps1
+++ b/PowerShellEditorServices.build.ps1
@@ -169,7 +169,7 @@ task TestHost -If { !$script:IsUnix} {
     exec { & $script:dotnetExe xunit -configuration $Configuration -framework net452 -verbose -nobuild -x86 }
 }
 
-task CITest (job Test -Safe), {
+task CITest ?Test, {
     # This task is used to ensure we have a chance to upload
     # test logs as a CI artifact when the tests fail
     if (error Test) {
diff --git a/appveyor.yml b/appveyor.yml
index d91c2ff9a..1278b24bc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,8 +16,8 @@ install:
       Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force | Out-Null
       Import-PackageProvider NuGet -Force | Out-Null
       Set-PSRepository -Name PSGallery -InstallationPolicy Trusted | Out-Null
-      Install-Module InvokeBuild -RequiredVersion 3.2.1 -Scope CurrentUser -Force | Out-Null
-      Install-Module platyPS -RequiredVersion 0.7.6 -Scope CurrentUser -Force | Out-Null
+      Install-Module InvokeBuild -MaximumVersion 5.1.0 -Scope CurrentUser -Force | Out-Null
+      Install-Module platyPS -RequiredVersion 0.9.0 -Scope CurrentUser -Force | Out-Null
 
 build_script:
   - ps: Invoke-Build -Configuration Release
diff --git a/scripts/travis.ps1 b/scripts/travis.ps1
index 676ef1dbc..5af67b0dd 100644
--- a/scripts/travis.ps1
+++ b/scripts/travis.ps1
@@ -1,8 +1,8 @@
 
 
 # Install InvokeBuild
-Install-Module InvokeBuild -Scope CurrentUser -Force
-Install-Module PlatyPS -Scope CurrentUser -Force
+Install-Module InvokeBuild -MaximumVersion 5.1.0 -Scope CurrentUser -Force
+Install-Module PlatyPS -RequiredVersion 0.9.0 -Scope CurrentUser -Force
 
 
 # Build the code and perform tests