diff --git a/buildkite/setup-windows-manual.ps1 b/buildkite/setup-windows-manual.ps1
index 0f1c61c..0a1a94f 100755
--- a/buildkite/setup-windows-manual.ps1
+++ b/buildkite/setup-windows-manual.ps1
@@ -234,7 +234,7 @@
 
 ## Download and install the Buildkite agent.
 Write-Host "Downloading Buildkite agent..."
-$buildkite_agent_version = "3.0-beta.40"
+$buildkite_agent_version = "3.0-beta.42"
 $buildkite_agent_url = "https://github.com/buildkite/agent/releases/download/v${buildkite_agent_version}/buildkite-agent-windows-amd64-${buildkite_agent_version}.zip"
 $buildkite_agent_zip = "c:\temp\buildkite-agent.zip"
 $buildkite_agent_root = "c:\buildkite"
diff --git a/buildkite/setup-windows.ps1 b/buildkite/setup-windows.ps1
index a79c1e9..fbe5f4b 100755
--- a/buildkite/setup-windows.ps1
+++ b/buildkite/setup-windows.ps1
@@ -233,7 +233,7 @@
 
 ## Download and install the Buildkite agent.
 Write-Host "Downloading Buildkite agent..."
-$buildkite_agent_version = "3.0-beta.40"
+$buildkite_agent_version = "3.0-beta.42"
 $buildkite_agent_url = "https://github.com/buildkite/agent/releases/download/v${buildkite_agent_version}/buildkite-agent-windows-amd64-${buildkite_agent_version}.zip"
 $buildkite_agent_zip = "c:\temp\buildkite-agent.zip"
 $buildkite_agent_root = "c:\buildkite"