diff --git a/pkg/aria2go/libaria2.go b/pkg/aria2go/libaria2.go
index b9f4b01..f614413 100644
--- a/pkg/aria2go/libaria2.go
+++ b/pkg/aria2go/libaria2.go
@@ -5,7 +5,7 @@ package aria2go
 /*
  #cgo CXXFLAGS: -std=c++11 -I./aria2-lib/include -Werror -Wall
  #cgo LDFLAGS: -L./aria2-lib/lib
- #cgo LDFLAGS: -lcrypto -lssl -lcares -lz -laria2
+ #cgo LDFLAGS: -lcrypto -lssl -lcares -laria2
  #cgo darwin LDFLAGS: -framework Security
  #include <stdlib.h>
  #include "aria2_c.h"
diff --git a/prepare_aria.sh b/prepare_aria.sh
index 7438b64..c99382b 100755
--- a/prepare_aria.sh
+++ b/prepare_aria.sh
@@ -2,7 +2,6 @@
 
 # In this configuration, the following dependent libraries are compiled:
 #
-# * zlib
 # * c-ares
 # * openSSL
 
@@ -31,13 +30,11 @@ rm -rf ${PREFIX}
 rm -rf _obj
 
 ## Version
-ZLIB_V=1.2.11
 OPENSSL_V=1.1.1w
 C_ARES_V=1.24.0
 ARIA2_V=1.37.0
 
 ## Dependencies
-ZLIB=http://sourceforge.net/projects/libpng/files/zlib/${ZLIB_V}/zlib-${ZLIB_V}.tar.gz
 OPENSSL=http://www.openssl.org/source/openssl-${OPENSSL_V}.tar.gz
 C_ARES=http://c-ares.haxx.se/download/c-ares-${C_ARES_V}.tar.gz
 ARIA2=https://github.com/aria2/aria2/releases/download/release-${ARIA2_V}/aria2-${ARIA2_V}.tar.bz2
@@ -48,19 +45,6 @@ BUILD_DIRECTORY=/tmp/
 ## Build
 cd ${BUILD_DIRECTORY}
 
-# zlib build
-if ! [[ -e zlib-${ZLIB_V}.tar.gz ]]; then
-    ${DOWNLOADER} ${ZLIB}
-fi
-tar zxvf zlib-${ZLIB_V}.tar.gz
-cd zlib-${ZLIB_V}
-PKG_CONFIG_PATH=${PREFIX}/lib/pkgconfig/ \
-    LD_LIBRARY_PATH=${PREFIX}/lib/ CC="$C_COMPILER" CXX="$CXX_COMPILER" \
-    ./configure --prefix=${PREFIX} --static
-make -j`nproc`
-make install
-cd ..
-
 # c-ares build
 if ! [[ -e c&&res-${C_ARES_V}.tar.gz ]]; then
     ${DOWNLOADER} ${C_ARES}
@@ -108,6 +92,7 @@ PKG_CONFIG_PATH=${PREFIX}/lib/pkgconfig/ \
     --without-libexpat \
     --without-libgcrypt \
     --without-libssh2 \
+    --without-zlib \
     --with-openssl \
     --without-appletls \
     --without-libnettle \
@@ -121,7 +106,6 @@ make install
 cd ..
 
 # cleaning
-rm -rf zlib-${ZLIB_V}
 rm -rf c-ares-${C_ARES_V}
 rm -rf openssl-${OPENSSL_V}
 rm -rf aria2-${ARIA2_V}