diff --git a/windows/package-i686/Dockerfile b/windows/package-i686/Dockerfile
index 0bf9ae1..0d671e6 100644
--- a/windows/package-i686/Dockerfile
+++ b/windows/package-i686/Dockerfile
@@ -37,6 +37,11 @@ FROM mcr.microsoft.com/windows/servercore:$WIN_VERSION
 
 COPY --from=MSYS2_download C:/msys64 C:/msys64
 
+# Install .NET runtime for i686
+RUN powershell -Command "\
+    Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -OutFile C:/windows/temp/dotnet-install.ps1' -ErrorAction Stop; \
+    C:/windows/temp/dotnet-install.ps1 -Architecture x86"
+
 # Download Windows 10 SDK and install only `signtool.exe`
 ARG SDK_URL="https://go.microsoft.com/fwlink/p/?linkid=2196241"
 ARG SDK_EXE="C:/windows/temp/winsdksetup.exe"
diff --git a/windows/package-x86_64/Dockerfile b/windows/package-x86_64/Dockerfile
index aa91252..a9d9ddf 100644
--- a/windows/package-x86_64/Dockerfile
+++ b/windows/package-x86_64/Dockerfile
@@ -32,6 +32,11 @@ FROM mcr.microsoft.com/windows/servercore:$WIN_VERSION
 
 COPY --from=MSYS2_download C:/msys64 C:/msys64
 
+# Install .NET runtime for x86_64
+RUN powershell -Command "\
+    Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -OutFile C:/windows/temp/dotnet-install.ps1' -ErrorAction Stop; \
+    C:/windows/temp/dotnet-install.ps1 -Architecture x64"
+
 # Download Windows 10 SDK and install only `signtool.exe`
 ARG SDK_URL="https://go.microsoft.com/fwlink/p/?linkid=2196241"
 ARG SDK_EXE="C:/windows/temp/winsdksetup.exe"