diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24f21cf..5bebbaf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,19 @@
+# 0.4.0-rust-1.45.2
+
+* **Breaking change** in avoid mixed user permissions when volume mounting cargo cache directories. This docker images now configures a cargo installation to `/cargo` directory rather than `/home/root/.cargo`. You'll also want to ensure
+docker runs use a docker user that maps to your host machine's user id and group.
+
+```diff
+$ docker run --rm \
++    -u $(id -u):$(id -g) \
+    -v ${PWD}:/code \
++    -v ${HOME}/.cargo/registry:/cargo/registry \
++    -v ${HOME}/.cargo/git:/cargo/git \
+    softprops/lambda-rust
+```
+
+* Upgrade to Rust [`1.45.2`](https://blog.rust-lang.org/2020/08/03/Rust-1.45.2.html)
+
 # 0.3.0-rust-1.45.0
 
 * Upgrade to Rust [`1.45.0`](https://blog.rust-lang.org/2020/07/16/Rust-1.45.0.html)
diff --git a/Dockerfile b/Dockerfile
index 3cd0736..fb6495a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # https://github.com/lambci/docker-lambda#documentation
 FROM lambci/lambda:build-provided
-ARG RUST_VERSION=stable
+ARG RUST_VERSION=1.45.2
 RUN yum install -y jq
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
  | CARGO_HOME=/cargo RUSTUP_HOME=/rustup sh -s -- -y --profile minimal --default-toolchain $RUST_VERSION
diff --git a/Makefile b/Makefile
index 28e7f7b..7cb3c43 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 VERSION ?= 0.3.0
-RUST_VERSION ?= 1.45.0
+RUST_VERSION ?= 1.45.2
 REPO ?= softprops/lambda-rust
 TAG ?= "$(REPO):$(VERSION)-rust-$(RUST_VERSION)"