diff --git a/.buildkite/steps/launch.sh b/.buildkite/steps/launch.sh
index d7ec174ea..ac549d6ac 100755
--- a/.buildkite/steps/launch.sh
+++ b/.buildkite/steps/launch.sh
@@ -1,5 +1,4 @@
 #!/bin/bash
-# shellcheck disable=SC1117
 set -eu
 
 os="${1:-linux}"
diff --git a/packer/windows/scripts/install-utils.ps1 b/packer/windows/scripts/install-utils.ps1
index bc011413b..0f6936f82 100644
--- a/packer/windows/scripts/install-utils.ps1
+++ b/packer/windows/scripts/install-utils.ps1
@@ -6,7 +6,9 @@ Set-ExecutionPolicy Bypass -Scope Process -Force
 Invoke-Expression ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
 
 Write-Output "Installing awscli"
-choco install -y awscli
+# pinned because awscli v2 drops 'aws ecr get-login'
+# https://github.com/buildkite-plugins/ecr-buildkite-plugin/issues/37
+choco install -y awscli --version=1.18.11
 If ($lastexitcode -ne 0) { Exit $lastexitcode }
 
 Write-Output "Installing Git for Windows"