diff --git a/ci/docker-rust-nightly/Dockerfile b/ci/docker-rust-nightly/Dockerfile
index 5285956e551691..a9a6abb2b7fc46 100644
--- a/ci/docker-rust-nightly/Dockerfile
+++ b/ci/docker-rust-nightly/Dockerfile
@@ -1,4 +1,4 @@
-FROM solanalabs/rust:1.65.0
+FROM solanalabs/rust:1.66.0
 ARG date
 
 RUN set -x \
diff --git a/ci/docker-rust/Dockerfile b/ci/docker-rust/Dockerfile
index d8713dbe02e87e..4a65e69f311b91 100644
--- a/ci/docker-rust/Dockerfile
+++ b/ci/docker-rust/Dockerfile
@@ -1,6 +1,6 @@
 # Note: when the rust version is changed also modify
 # ci/rust-version.sh to pick up the new image tag
-FROM rust:1.65.0
+FROM rust:1.66.0
 
 # Add Google Protocol Buffers for Libra's metrics library.
 ENV PROTOC_VERSION 3.8.0
diff --git a/ci/rust-version.sh b/ci/rust-version.sh
index 1f2bfb98f0fa5f..f4c924a59d7a85 100644
--- a/ci/rust-version.sh
+++ b/ci/rust-version.sh
@@ -29,7 +29,7 @@ fi
 if [[ -n $RUST_NIGHTLY_VERSION ]]; then
   nightly_version="$RUST_NIGHTLY_VERSION"
 else
-  nightly_version=2022-11-02
+  nightly_version=2022-12-15
 fi