diff --git a/Dockerfile b/Dockerfile
index 5c804da..9a044c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,9 @@
 FROM rust:latest
 
+# Install Rust nightly toolchain
+RUN rustup toolchain install nightly && \
+    rustup default nightly
+
 # Install cargo-aoc from specific GitHub repository
 RUN cargo install --git https://github.com/ggriffiniii/cargo-aoc cargo-aoc