diff --git a/.circleci/images/plume-buildenv/Dockerfile b/.circleci/images/plume-buildenv/Dockerfile
index e0de900a..a16a081d 100644
--- a/.circleci/images/plume-buildenv/Dockerfile
+++ b/.circleci/images/plume-buildenv/Dockerfile
@@ -11,7 +11,7 @@ RUN apt update &&\
     rm -rf /var/lib/apt/lists/*
 
 #install and configure rust
-RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2020-12-07 -y &&\
+RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2021-01-15 -y &&\
     rustup component add rustfmt clippy &&\
     rustup component add rust-std --target wasm32-unknown-unknown
 
diff --git a/rust-toolchain b/rust-toolchain
index b54a6029..85ff8d47 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2020-01-15
+nightly-2021-01-15