diff --git a/ci/x86_64-windows-debug.ps1 b/ci/x86_64-windows-debug.ps1
index 8176b34f11d0518f4bfe4aa87245929a20811eb8..1b98219de36876ca0f86373661a50a196741728e 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 4b2cf674c7e1d4e2dd9853201f6d354e750ffbd9..8a3ddafb73692b589c38acca07d6f3c99b28dca9 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"