diff --git a/.circleci/config.yml b/.circleci/config.yml
index f9791eafce69a90a418cf369a8bf72f881c632ba..958b923928202821ea62578686da346a0bddba38 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -17,7 +17,7 @@ save_openssl: &SAVE_OPENSSL
     paths:
     - /openssl
 deps_key: &DEPS_KEY
-  key: deps-1.19.0-{{ checksum "Cargo.lock" }}-{{ checksum "~/lib_key" }}-2
+  key: deps-1.20.0-{{ checksum "Cargo.lock" }}-{{ checksum "~/lib_key" }}-2
 restore_deps: &RESTORE_DEPS
   restore_cache:
     <<: *DEPS_KEY
@@ -31,7 +31,7 @@ save_deps: &SAVE_DEPS
 job: &JOB
   working_directory: ~/build
   docker:
-  - image: rust:1.19.0
+  - image: rust:1.20.0
   steps:
   - checkout
   - run: apt-get update
@@ -77,7 +77,7 @@ macos_job: &MACOS_JOB
   - checkout
   - run: sudo mkdir /opt
   - run: sudo chown -R $USER /usr/local /opt
-  - run: curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain 1.19.0
+  - run: curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain 1.20.0
   - run: sudo ln -s $CARGO_HOME/bin/* /usr/local/bin
   - *RESTORE_REGISTRY
   - run: cargo generate-lockfile