diff --git a/README.md b/README.md
index 43fa47bb5..2a3f944ba 100644
--- a/README.md
+++ b/README.md
@@ -89,11 +89,7 @@ It is recommended to use the official script, otherwise you may not find rustup.
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 
 echo "source \$HOME/.cargo/env" >> $HOME/.bashrc && source $HOME/.cargo/env
-
-rustup toolchain install nightly-2020-12-20
-
-rustup override set nightly-2020-12-20
-
+cd ss-rust/src/main/rust/shadowsocks-rust
 rustup target install armv7-linux-androideabi aarch64-linux-android i686-linux-android x86_64-linux-android
 ```
 
diff --git a/bin/update_libs.sh b/bin/update_libs.sh
index 3fcc3704f..7fe104b2d 100755
--- a/bin/update_libs.sh
+++ b/bin/update_libs.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-V2RAY_CORE_VERSION="4.33.0"
+V2RAY_CORE_VERSION="4.34.0"
 
 if [ ! -x "$(command -v go)" ]; then
 
diff --git a/ss-rust/src/main/rust/shadowsocks-rust b/ss-rust/src/main/rust/shadowsocks-rust
index 3a1054acc..1ac8e2fd5 160000
--- a/ss-rust/src/main/rust/shadowsocks-rust
+++ b/ss-rust/src/main/rust/shadowsocks-rust
@@ -1 +1 @@
-Subproject commit 3a1054acc54cfc23a1cd232aa0a45b66af4bd612
+Subproject commit 1ac8e2fd5059eb92d6d6bc8d3d66ad423cb7cb05