diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index f8d91e8e5e..19a58551c2 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -26,7 +26,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2021-06-17
+          toolchain: nightly-2021-09-12
           components: rustfmt
           target: wasm32-unknown-unknown
           default: true
diff --git a/Dockerfile b/Dockerfile
index bb31481ac5..11e1232a3e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,8 +18,8 @@
 FROM rust:buster as builder
 
 RUN apt-get update && apt-get install time clang libclang-dev llvm -y
-RUN rustup toolchain install nightly-2021-06-17
-RUN rustup target add wasm32-unknown-unknown --toolchain nightly-2021-06-17
+RUN rustup toolchain install nightly-2021-09-12
+RUN rustup target add wasm32-unknown-unknown --toolchain nightly-2021-09-12
 
 WORKDIR /app
 COPY . /app
diff --git a/scripts/init.sh b/scripts/init.sh
index 5a1b585b1d..9585a80563 100755
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -4,6 +4,6 @@ set -e
 
 echo "*** Initializing WASM build environment"
 
-rustup default nightly-2021-06-17
+rustup default nightly-2021-09-12
 
-rustup target add wasm32-unknown-unknown --toolchain nightly-2021-06-17
+rustup target add wasm32-unknown-unknown --toolchain nightly-2021-09-12