diff --git a/ci/x86_64-windows-debug.ps1 b/ci/x86_64-windows-debug.ps1
index cf303a17b3f71583a8a6fb63e531b7008f46b6a2..782b916b74f1730f12c1a4aae8afbdddd7c39807 100644
--- a/ci/x86_64-windows-debug.ps1
+++ b/ci/x86_64-windows-debug.ps1
@@ -6,6 +6,7 @@ $PREFIX_PATH = "$(Get-Location)\$ZIG_LLVM_CLANG_LLD_NAME"
 $ZIG = "$PREFIX_PATH\bin\zig.exe"
 $ZIG_LIB_DIR = "$(Get-Location)\lib"
 
+choco install ninja
 Write-Output "Downloading $ZIG_LLVM_CLANG_LLD_URL"
 Invoke-WebRequest -Uri "$ZIG_LLVM_CLANG_LLD_URL" -OutFile "$ZIG_LLVM_CLANG_LLD_NAME.zip"
 
diff --git a/ci/x86_64-windows-release.ps1 b/ci/x86_64-windows-release.ps1
index da0353836a66d25328e083ba2f0b3524bbdb322d..847019d532772c2421428c46eb35ed4fbf69f5c7 100644
--- a/ci/x86_64-windows-release.ps1
+++ b/ci/x86_64-windows-release.ps1
@@ -6,6 +6,7 @@ $PREFIX_PATH = "$(Get-Location)\$ZIG_LLVM_CLANG_LLD_NAME"
 $ZIG = "$PREFIX_PATH\bin\zig.exe"
 $ZIG_LIB_DIR = "$(Get-Location)\lib"
 
+choco install ninja
 Write-Output "Downloading $ZIG_LLVM_CLANG_LLD_URL"
 Invoke-WebRequest -Uri "$ZIG_LLVM_CLANG_LLD_URL" -OutFile "$ZIG_LLVM_CLANG_LLD_NAME.zip"