diff --git a/deps/rust-sgx-sdk b/deps/rust-sgx-sdk
index 77c1d48c..e2a9b663 160000
--- a/deps/rust-sgx-sdk
+++ b/deps/rust-sgx-sdk
@@ -1 +1 @@
-Subproject commit 77c1d48ca310b1029b672dfc8903666292288632
+Subproject commit e2a9b663cdd942659d4c16f8dadda94b1d6fcc6e
diff --git a/src/exec/rust-toolchain b/src/exec/rust-toolchain
index 8c975dc6..148ed93d 100644
--- a/src/exec/rust-toolchain
+++ b/src/exec/rust-toolchain
@@ -1 +1 @@
-nightly-2020-09-08
+nightly-2020-10-25
diff --git a/src/libos/Cargo.lock b/src/libos/Cargo.lock
index 1a862f7a..94e865a3 100644
--- a/src/libos/Cargo.lock
+++ b/src/libos/Cargo.lock
@@ -533,11 +533,11 @@ dependencies = [
 
 [[package]]
 name = "sgx_alloc"
-version = "1.1.2"
+version = "1.1.3"
 
 [[package]]
 name = "sgx_backtrace_sys"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "cc",
  "sgx_build_helper",
@@ -550,7 +550,7 @@ version = "0.1.3"
 
 [[package]]
 name = "sgx_cov"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "lazy_static",
  "profiler_builtins",
@@ -562,18 +562,18 @@ dependencies = [
 
 [[package]]
 name = "sgx_demangle"
-version = "1.1.2"
+version = "1.1.3"
 
 [[package]]
 name = "sgx_libc"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_types",
 ]
 
 [[package]]
 name = "sgx_rand"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_trts",
  "sgx_tstd",
@@ -582,14 +582,14 @@ dependencies = [
 
 [[package]]
 name = "sgx_tcrypto"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_types",
 ]
 
 [[package]]
 name = "sgx_tprotected_fs"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_trts",
  "sgx_types",
@@ -597,7 +597,7 @@ dependencies = [
 
 [[package]]
 name = "sgx_trts"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_libc",
  "sgx_types",
@@ -605,14 +605,14 @@ dependencies = [
 
 [[package]]
 name = "sgx_tse"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "sgx_types",
 ]
 
 [[package]]
 name = "sgx_tstd"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "hashbrown_tstd",
  "sgx_alloc",
@@ -627,7 +627,7 @@ dependencies = [
 
 [[package]]
 name = "sgx_types"
-version = "1.1.2"
+version = "1.1.3"
 
 [[package]]
 name = "sgx_unwind"
diff --git a/src/libos/rust-toolchain b/src/libos/rust-toolchain
index 8c975dc6..148ed93d 100644
--- a/src/libos/rust-toolchain
+++ b/src/libos/rust-toolchain
@@ -1 +1 @@
-nightly-2020-09-08
+nightly-2020-10-25
diff --git a/src/libos/src/error/to_errno.rs b/src/libos/src/error/to_errno.rs
index d205f04e..67c8e996 100644
--- a/src/libos/src/error/to_errno.rs
+++ b/src/libos/src/error/to_errno.rs
@@ -101,7 +101,7 @@ impl ToErrno for rcore_fs::vfs::FsError {
     }
 }
 
-impl ToErrno for std::alloc::AllocErr {
+impl ToErrno for std::alloc::AllocError {
     fn errno(&self) -> Errno {
         ENOMEM
     }
diff --git a/src/libos/src/untrusted/alloc.rs b/src/libos/src/untrusted/alloc.rs
index 80ef9f92..ec56a659 100644
--- a/src/libos/src/untrusted/alloc.rs
+++ b/src/libos/src/untrusted/alloc.rs
@@ -1,5 +1,5 @@
 use super::*;
-use std::alloc::{AllocErr, AllocRef, Layout};
+use std::alloc::{AllocError, AllocRef, Layout};
 use std::ptr::{self, write_bytes, NonNull};
 
 /// The global memory allocator for untrusted memory
@@ -8,9 +8,9 @@ pub static mut UNTRUSTED_ALLOC: UntrustedAlloc = UntrustedAlloc;
 pub struct UntrustedAlloc;
 
 unsafe impl AllocRef for UntrustedAlloc {
-    fn alloc(&mut self, layout: Layout) -> std::result::Result<NonNull<[u8]>, AllocErr> {
+    fn alloc(&self, layout: Layout) -> std::result::Result<NonNull<[u8]>, AllocError> {
         if layout.size() == 0 {
-            return Err(AllocErr);
+            return Err(AllocError);
         }
 
         // Do OCall to allocate the untrusted memory according to the given layout
@@ -26,7 +26,7 @@ unsafe impl AllocRef for UntrustedAlloc {
             mem_ptr
         } as *mut u8;
         if mem_ptr == std::ptr::null_mut() {
-            return Err(AllocErr);
+            return Err(AllocError);
         }
 
         // Sanity checks
@@ -43,7 +43,7 @@ unsafe impl AllocRef for UntrustedAlloc {
         .unwrap())
     }
 
-    unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
+    unsafe fn dealloc(&self, ptr: NonNull<u8>, layout: Layout) {
         // Pre-condition: out-of-enclave
         debug_assert!(sgx_trts::trts::rsgx_raw_is_outside_enclave(
             ptr.as_ptr(),
diff --git a/src/libos/src/untrusted/slice_alloc.rs b/src/libos/src/untrusted/slice_alloc.rs
index 189b04d5..5a309925 100644
--- a/src/libos/src/untrusted/slice_alloc.rs
+++ b/src/libos/src/untrusted/slice_alloc.rs
@@ -1,5 +1,5 @@
 use super::*;
-use std::alloc::{AllocErr, AllocRef, Layout};
+use std::alloc::{AllocError, AllocRef, Layout};
 use std::ptr::NonNull;
 use std::sync::atomic::{AtomicUsize, Ordering};
 
diff --git a/tools/docker/Dockerfile.aliyunlinux b/tools/docker/Dockerfile.aliyunlinux
index cf51eccd..35e5a4b9 100644
--- a/tools/docker/Dockerfile.aliyunlinux
+++ b/tools/docker/Dockerfile.aliyunlinux
@@ -156,7 +156,7 @@ ENV PATH="/opt/occlum/toolchains/jvm/bin:$PATH"
 
 # Install Rust
 ENV PATH="/root/.cargo/bin:$PATH"
-ENV OCCLUM_RUST_VERSION=nightly-2020-09-08
+ENV OCCLUM_RUST_VERSION=nightly-2020-10-25
 RUN curl https://sh.rustup.rs -sSf | \
         sh -s -- --default-toolchain ${OCCLUM_RUST_VERSION} -y && \
     rm -rf /root/.cargo/registry && rm -rf /root/.cargo/git && \
diff --git a/tools/docker/Dockerfile.centos8.2 b/tools/docker/Dockerfile.centos8.2
index 680f3d09..b0543f4a 100644
--- a/tools/docker/Dockerfile.centos8.2
+++ b/tools/docker/Dockerfile.centos8.2
@@ -55,7 +55,7 @@ RUN wget http://www.etallen.com/cpuid/cpuid-20200211.x86_64.tar.gz && \
 
 # Install Rust
 ENV PATH="/root/.cargo/bin:$PATH"
-ENV OCCLUM_RUST_VERSION=nightly-2020-09-08
+ENV OCCLUM_RUST_VERSION=nightly-2020-10-25
 RUN curl https://sh.rustup.rs -sSf | \
         sh -s -- --default-toolchain ${OCCLUM_RUST_VERSION} -y && \
     rm -rf /root/.cargo/registry && rm -rf /root/.cargo/git && \
diff --git a/tools/docker/Dockerfile.ubuntu18.04 b/tools/docker/Dockerfile.ubuntu18.04
index 1c3bafee..be5e5e4f 100644
--- a/tools/docker/Dockerfile.ubuntu18.04
+++ b/tools/docker/Dockerfile.ubuntu18.04
@@ -72,7 +72,7 @@ RUN wget http://www.etallen.com/cpuid/cpuid-20200211.x86_64.tar.gz && \
 
 # Install Rust
 ENV PATH="/root/.cargo/bin:$PATH"
-ENV OCCLUM_RUST_VERSION=nightly-2020-09-08
+ENV OCCLUM_RUST_VERSION=nightly-2020-10-25
 RUN curl https://sh.rustup.rs -sSf | \
         sh -s -- --default-toolchain ${OCCLUM_RUST_VERSION} -y && \
     rm -rf /root/.cargo/registry && rm -rf /root/.cargo/git && \