diff --git a/README.CN.md b/README.CN.md
index c8906086..852e9cc7 100644
--- a/README.CN.md
+++ b/README.CN.md
@@ -52,8 +52,8 @@ _带上我最诚挚的问候,<br>Andre ([@andre-richter])_
 3. 安装正确的`Rust`工具链:
    1. 如果你已经安装了一个版本的Rust:
       ```bash
-      rustup toolchain add nightly-2020-10-04
-      rustup default nightly-2020-10-04
+      rustup toolchain add nightly-2020-11-20
+      rustup default nightly-2020-11-20
       rustup component add llvm-tools-preview
       rustup target add aarch64-unknown-none-softfloat
       cargo install cargo-binutils
@@ -62,7 +62,7 @@ _带上我最诚挚的问候,<br>Andre ([@andre-richter])_
    2. 如果你想要全新安装:
       ```bash
       curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
-          --default-toolchain nightly-2020-10-04                           \
+          --default-toolchain nightly-2020-11-20                           \
           --component llvm-tools-preview
 
       source $HOME/.cargo/env
diff --git a/README.md b/README.md
index dc034b1d..033c3604 100644
--- a/README.md
+++ b/README.md
@@ -68,8 +68,8 @@ other Unix flavors such as **macOS**, but this is only _experimental_.
 1. Install a suitable `Rust` toolchain:
    1. If you already have a version of Rust installed:
       ```bash
-      rustup toolchain add nightly-2020-10-04
-      rustup default nightly-2020-10-04
+      rustup toolchain add nightly-2020-11-20
+      rustup default nightly-2020-11-20
       rustup component add llvm-tools-preview
       rustup target add aarch64-unknown-none-softfloat
       cargo install cargo-binutils
@@ -78,7 +78,7 @@ other Unix flavors such as **macOS**, but this is only _experimental_.
    2. If you need a fresh install:
       ```bash
       curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
-          --default-toolchain nightly-2020-10-04                           \
+          --default-toolchain nightly-2020-11-20                           \
           --component llvm-tools-preview
 
       source $HOME/.cargo/env
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index 4c6a0f60..38fba536 100755
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