diff --git a/ShadowsocksX-NG.xcodeproj/project.pbxproj b/ShadowsocksX-NG.xcodeproj/project.pbxproj
index 71b4cdd..fb12ccd 100755
--- a/ShadowsocksX-NG.xcodeproj/project.pbxproj
+++ b/ShadowsocksX-NG.xcodeproj/project.pbxproj
@@ -27,7 +27,6 @@
 		9B3546731E802B1200B510B4 /* ToastWindowController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 9B3546711E802B1200B510B4 /* ToastWindowController.xib */; };
 		9B3F7BFF1E82BF5B00C68B75 /* libev.4.dylib in Resources */ = {isa = PBXBuildFile; fileRef = 9B3F7BF71E82BF2D00C68B75 /* libev.4.dylib */; };
 		9B3F7C001E82BF5B00C68B75 /* libmbedcrypto.2.4.2.dylib in Resources */ = {isa = PBXBuildFile; fileRef = 9B3F7BF81E82BF2D00C68B75 /* libmbedcrypto.2.4.2.dylib */; };
-		9B3F7C011E82BF5B00C68B75 /* libsodium.18.dylib in Resources */ = {isa = PBXBuildFile; fileRef = 9B3F7BF91E82BF2E00C68B75 /* libsodium.18.dylib */; };
 		9B3F7C021E82BF5B00C68B75 /* libudns.0.dylib in Resources */ = {isa = PBXBuildFile; fileRef = 9B3F7BFA1E82BF2E00C68B75 /* libudns.0.dylib */; };
 		9B3FFF0D1D05FEB30019A709 /* Utils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9B3FFF0C1D05FEB30019A709 /* Utils.swift */; };
 		9B3FFF141D0705810019A709 /* Notifications.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9B3FFF131D0705810019A709 /* Notifications.swift */; };
@@ -50,6 +49,9 @@
 		9B5832071E7421B2009D5B7D /* virtual-server-icon-3.png in Resources */ = {isa = PBXBuildFile; fileRef = 9B5832061E7421B2009D5B7D /* virtual-server-icon-3.png */; };
 		9B58320B1E7422DB009D5B7D /* http.png in Resources */ = {isa = PBXBuildFile; fileRef = 9B58320A1E7422DB009D5B7D /* http.png */; };
 		9B5832111E742632009D5B7D /* kcptun_1.png in Resources */ = {isa = PBXBuildFile; fileRef = 9B5832101E742632009D5B7D /* kcptun_1.png */; };
+		9B5AA0A1209C100C00E8B659 /* libsodium.23.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 9B5AA09F209C100C00E8B659 /* libsodium.23.dylib */; };
+		9B5AA0A3209C103900E8B659 /* libcares.2.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 9B5AA0A2209C103900E8B659 /* libcares.2.dylib */; };
+		9B5AA0A5209C115B00E8B659 /* libmbedcrypto.2.8.0.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 9B5AA0A4209C115B00E8B659 /* libmbedcrypto.2.8.0.dylib */; };
 		9B6BF9541E27B2570061B9A7 /* ServiceManagement.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9B6BF9531E27B2570061B9A7 /* ServiceManagement.framework */; };
 		9B86459D1E7C2CAD00A84029 /* ProxyInterfacesViewCtrl.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9B86459C1E7C2CAD00A84029 /* ProxyInterfacesViewCtrl.swift */; };
 		9B938D991E864B38005F5636 /* menu_g_icon.png in Resources */ = {isa = PBXBuildFile; fileRef = 9B938D931E864B38005F5636 /* menu_g_icon.png */; };
@@ -171,7 +173,6 @@
 		9B3546711E802B1200B510B4 /* ToastWindowController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = ToastWindowController.xib; sourceTree = "<group>"; };
 		9B3F7BF71E82BF2D00C68B75 /* libev.4.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libev.4.dylib; sourceTree = "<group>"; };
 		9B3F7BF81E82BF2D00C68B75 /* libmbedcrypto.2.4.2.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libmbedcrypto.2.4.2.dylib; sourceTree = "<group>"; };
-		9B3F7BF91E82BF2E00C68B75 /* libsodium.18.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libsodium.18.dylib; sourceTree = "<group>"; };
 		9B3F7BFA1E82BF2E00C68B75 /* libudns.0.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libudns.0.dylib; sourceTree = "<group>"; };
 		9B3FFF0C1D05FEB30019A709 /* Utils.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Utils.swift; sourceTree = "<group>"; };
 		9B3FFF131D0705810019A709 /* Notifications.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Notifications.swift; sourceTree = "<group>"; };
@@ -203,6 +204,9 @@
 		9B5832061E7421B2009D5B7D /* virtual-server-icon-3.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "virtual-server-icon-3.png"; sourceTree = "<group>"; };
 		9B58320A1E7422DB009D5B7D /* http.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = http.png; sourceTree = "<group>"; };
 		9B5832101E742632009D5B7D /* kcptun_1.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = kcptun_1.png; sourceTree = "<group>"; };
+		9B5AA09F209C100C00E8B659 /* libsodium.23.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libsodium.23.dylib; sourceTree = "<group>"; };
+		9B5AA0A2209C103900E8B659 /* libcares.2.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libcares.2.dylib; sourceTree = "<group>"; };
+		9B5AA0A4209C115B00E8B659 /* libmbedcrypto.2.8.0.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; path = libmbedcrypto.2.8.0.dylib; sourceTree = "<group>"; };
 		9B6BF9531E27B2570061B9A7 /* ServiceManagement.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = ServiceManagement.framework; path = System/Library/Frameworks/ServiceManagement.framework; sourceTree = SDKROOT; };
 		9B86459C1E7C2CAD00A84029 /* ProxyInterfacesViewCtrl.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ProxyInterfacesViewCtrl.swift; sourceTree = "<group>"; };
 		9B938D931E864B38005F5636 /* menu_g_icon.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = menu_g_icon.png; sourceTree = "<group>"; };
@@ -253,9 +257,12 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				9B5AA0A3209C103900E8B659 /* libcares.2.dylib in Frameworks */,
 				9B6BF9541E27B2570061B9A7 /* ServiceManagement.framework in Frameworks */,
 				9B3FFF3E1D08D9910019A709 /* SystemConfiguration.framework in Frameworks */,
+				9B5AA0A5209C115B00E8B659 /* libmbedcrypto.2.8.0.dylib in Frameworks */,
 				258E511BA910B0521B24DAB8 /* Pods_ShadowsocksX_NG.framework in Frameworks */,
+				9B5AA0A1209C100C00E8B659 /* libsodium.23.dylib in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -305,6 +312,9 @@
 		9B07EFB01D048E900052D9DF /* Support Files */ = {
 			isa = PBXGroup;
 			children = (
+				9B5AA09F209C100C00E8B659 /* libsodium.23.dylib */,
+				9B5AA0A2209C103900E8B659 /* libcares.2.dylib */,
+				9B5AA0A4209C115B00E8B659 /* libmbedcrypto.2.8.0.dylib */,
 				1C82DBA31FA96C7400B32551 /* simple-obfs */,
 				9B16E5991F99FD0700E54DC5 /* icons8-Blind Filled-50.png */,
 				9B16E5971F99FD0700E54DC5 /* icons8-Eye Filled-50.png */,
@@ -316,7 +326,6 @@
 				9B938D981E864B38005F5636 /* menu_p_icon@2x.png */,
 				9B3F7BF71E82BF2D00C68B75 /* libev.4.dylib */,
 				9B3F7BF81E82BF2D00C68B75 /* libmbedcrypto.2.4.2.dylib */,
-				9B3F7BF91E82BF2E00C68B75 /* libsodium.18.dylib */,
 				9B3F7BFA1E82BF2E00C68B75 /* libudns.0.dylib */,
 				9B5832101E742632009D5B7D /* kcptun_1.png */,
 				9B58320A1E7422DB009D5B7D /* http.png */,
@@ -604,7 +613,6 @@
 				9B3F7BFF1E82BF5B00C68B75 /* libev.4.dylib in Resources */,
 				1C82DBAA1FA96FB600B32551 /* install_simple_obfs.sh in Resources */,
 				9B3F7C001E82BF5B00C68B75 /* libmbedcrypto.2.4.2.dylib in Resources */,
-				9B3F7C011E82BF5B00C68B75 /* libsodium.18.dylib in Resources */,
 				9B3F7C021E82BF5B00C68B75 /* libudns.0.dylib in Resources */,
 				9B9CBCB41E26453C00FC61AA /* start_kcptun.sh in Resources */,
 				9B9CBCB51E26453C00FC61AA /* stop_kcptun.sh in Resources */,
diff --git a/ShadowsocksX-NG/LaunchAgentUtils.swift b/ShadowsocksX-NG/LaunchAgentUtils.swift
index 00051e6..5200443 100644
--- a/ShadowsocksX-NG/LaunchAgentUtils.swift
+++ b/ShadowsocksX-NG/LaunchAgentUtils.swift
@@ -8,7 +8,7 @@
 
 import Foundation
 
-let SS_LOCAL_VERSION = "3.0.5"
+let SS_LOCAL_VERSION = "3.1.3"
 let KCPTUN_CLIENT_VERSION = "20170322"
 let PRIVOXY_VERSION = "3.0.26.static"
 let SIMPLE_OBFS_VERSION = "0.0.2"
diff --git a/ShadowsocksX-NG/install_ss_local.sh b/ShadowsocksX-NG/install_ss_local.sh
index e37edc3..5d20d47 100755
--- a/ShadowsocksX-NG/install_ss_local.sh
+++ b/ShadowsocksX-NG/install_ss_local.sh
@@ -10,7 +10,7 @@
 cd `dirname "${BASH_SOURCE[0]}"`
 
 NGDir="$HOME/Library/Application Support/ShadowsocksX-NG"
-TargetDir="$NGDir/ss-local-3.0.5"
+TargetDir="$NGDir/ss-local-3.1.3"
 LatestTargetDir="$NGDir/ss-local-latest"
 
 echo ngdir: ${NGDir}
@@ -21,10 +21,22 @@ rm -f "$LatestTargetDir"
 ln -s "$TargetDir" "$LatestTargetDir"
 
 cp -f libev.4.dylib "$TargetDir"
-cp -f libmbedcrypto.2.4.2.dylib "$TargetDir"
-ln -s  "$TargetDir/libmbedcrypto.2.4.2.dylib" "$TargetDir/libmbedcrypto.0.dylib"
+
+# 2.8.0 https://bintray.com/homebrew/bottles/mbedtls
+cp -f libmbedcrypto.2.8.0.dylib "$TargetDir"
+ln -s  "$TargetDir/libmbedcrypto.2.8.0.dylib" "$TargetDir/libmbedcrypto.1.dylib"
+
+# 8.42 https://bintray.com/homebrew/bottles/pcre
 cp -f libpcre.1.dylib "$TargetDir"
-cp -f libsodium.18.dylib "$TargetDir"
-cp -f libudns.0.dylib "$TargetDir"
+
+# 1.0.16 https://bintray.com/homebrew/bottles/libsodium
+cp -f libsodium.23.dylib "$TargetDir"
+ln -s "$TargetDir/libsodium.23.dylib" "$TargetDir/libsodium.dylib"
+
+#cp -f libudns.0.dylib "$TargetDir"
+
+# 1.14.0 https://bintray.com/homebrew/bottles/c-ares
+cp -f libcares.2.dylib "$TargetDir"
+ln -s "$TargetDir/libcares.2.dylib" "$TargetDir/libcares.dylib"
 
 echo done
diff --git a/ShadowsocksX-NG/libcares.2.dylib b/ShadowsocksX-NG/libcares.2.dylib
new file mode 100644
index 0000000..66ea616
Binary files /dev/null and b/ShadowsocksX-NG/libcares.2.dylib differ
diff --git a/ShadowsocksX-NG/libmbedcrypto.2.8.0.dylib b/ShadowsocksX-NG/libmbedcrypto.2.8.0.dylib
new file mode 100644
index 0000000..bbeca0c
Binary files /dev/null and b/ShadowsocksX-NG/libmbedcrypto.2.8.0.dylib differ
diff --git a/ShadowsocksX-NG/libpcre.1.dylib b/ShadowsocksX-NG/libpcre.1.dylib
index a4d7cbe..e1b1387 100644
Binary files a/ShadowsocksX-NG/libpcre.1.dylib and b/ShadowsocksX-NG/libpcre.1.dylib differ
diff --git a/ShadowsocksX-NG/libsodium.18.dylib b/ShadowsocksX-NG/libsodium.18.dylib
deleted file mode 100644
index 7df9349..0000000
Binary files a/ShadowsocksX-NG/libsodium.18.dylib and /dev/null differ
diff --git a/ShadowsocksX-NG/libsodium.23.dylib b/ShadowsocksX-NG/libsodium.23.dylib
new file mode 100644
index 0000000..d798e96
Binary files /dev/null and b/ShadowsocksX-NG/libsodium.23.dylib differ
diff --git a/ShadowsocksX-NG/ss-local b/ShadowsocksX-NG/ss-local
index 7519dea..f25d6c8 100755
Binary files a/ShadowsocksX-NG/ss-local and b/ShadowsocksX-NG/ss-local differ