diff --git a/.drone.yml b/.drone.yml
index 6c0206b..ba1e30e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -17,14 +17,14 @@ pipeline:
     commands:
       - mkdir build.linux && cd build.linux
       - cmake ..
-      - make -j
+      - make -j$$(nproc)
   lan-play-windows:
     group: build
     image: switch-lan-play-build:win
     commands:
       - mkdir build.win && cd build.win
       - cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchain-mingw32.cmake ..
-      - make -j
+      - make -j$$(nproc)
   server:
     group: build
     image: node:alpine
diff --git a/cmake/toolchain-mingw64.cmake b/cmake/toolchain-mingw64.cmake
index 3010f9b..f96de64 100644
--- a/cmake/toolchain-mingw64.cmake
+++ b/cmake/toolchain-mingw64.cmake
@@ -4,7 +4,7 @@ set(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
 set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
 
 set(CMAKE_SYSTEM_NAME Windows)
-set(TOOLCHAIN_PREFIX i686-w64-mingw64)
+set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
 
 # cross compilers to use for C and C++
 set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
diff --git a/docker/Dockerfile.win b/docker/Dockerfile.win
index 88b9500..3af5ef9 100644
--- a/docker/Dockerfile.win
+++ b/docker/Dockerfile.win
@@ -6,12 +6,16 @@ RUN apt update
 RUN apt install -y cmake make
 RUN apt install -y mingw-w64 unzip
 COPY ./cmake/toolchain-mingw64.cmake /
-RUN curl -L -o /tmp/libevent-2.1.8-stable.tar.gz https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz
-RUN tar xvf /tmp/libevent-2.1.8-stable.tar.gz -C /tmp
-ENV HOST=i686-w64-mingw64
-ENV TARGET=i686-w64-mingw64
-ENV PREFIX=/usr/i686-w64-mingw64/
-RUN cd /tmp/libevent-2.1.8-stable \
-    && ./configure --host=$HOST --target=$TARGET --prefix=$PREFIX --disable-openssl --enable-shared=no \
-    && make -j \
+RUN curl -L -o /tmp/libev-v1.23.0.tar.gz https://github.com/libuv/libuv/archive/v1.23.0.tar.gz
+RUN tar xvf /tmp/libev-v1.23.0.tar.gz -C /tmp
+# I can't `make install` by using cmake, so ...
+# RUN cd /tmp/libuv-1.23.0/build \
+#     && cmake -DCMAKE_TOOLCHAIN_FILE=/toolchain-mingw64.cmake -DCMAKE_INSTALL_PREFIX=/usr/x86_64-w64-mingw32/ ..
+ENV HOST=x86_64-w64-mingw32
+ENV TARGET=x86_64-w64-mingw32
+ENV PREFIX=/usr/x86_64-w64-mingw32/
+RUN cd /tmp/libuv-1.23.0 \
+    && ./autogen.sh \
+    && ./configure --host=$HOST --target=$TARGET --prefix=$PREFIX --disable-shared --enable-static \
+    && make -j$(nproc) \
     && make install