diff --git a/.circleci/config.yml b/.circleci/config.yml
index 46fc8c0..7d6031b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -24,7 +24,7 @@ version: 2
 jobs:
   version:
     docker:
-      - image: quay.io/tkrs/docker-rust:1.31.1
+      - image: quay.io/tkrs/docker-rust:1.32.0
     <<: *steps_template
   stable:
     docker:
diff --git a/Cargo.toml b/Cargo.toml
index 772b1bc..3521beb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ serde_derive = "1.0"
 uuid = { version = "0.7", features = ["v4"] }
 
 [dev-dependencies]
-pretty_env_logger = "0.2"
+pretty_env_logger = "0.3"
 lazy_static = "1.2"
 rand = "0.6"
 
diff --git a/rust-toolchain b/rust-toolchain
index 6bae540..359c410 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.31.1
+1.32.0