diff --git a/ci/docker-rust-nightly/Dockerfile b/ci/docker-rust-nightly/Dockerfile
index c284c38e7d..466b57ff75 100644
--- a/ci/docker-rust-nightly/Dockerfile
+++ b/ci/docker-rust-nightly/Dockerfile
@@ -1,9 +1,14 @@
 FROM solanalabs/rust
 ARG date
 
-RUN set -x && \
-    rustup install nightly-$date && \
-    rustup default nightly-$date && \
-    rustc --version && \
-    cargo --version && \
-    cargo +nightly-$date install cargo-cov
+RUN set -x \
+ && rustup install nightly-$date \
+ && rustup show \
+ && mv /usr/local/rustup/toolchains/nightly-$date-* \
+       /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-gnu \
+ && rustup show \
+ && rustc --version \
+ && cargo --version \
+ && rustc +nightly --version \
+ && cargo +nightly --version
+