diff --git a/kokoro/Dockerfile b/kokoro/Dockerfile
index 0354b01dae..b0551817d4 100644
--- a/kokoro/Dockerfile
+++ b/kokoro/Dockerfile
@@ -35,7 +35,7 @@ RUN apt-get update && apt-get install -y \
 ENV RUSTUP_HOME=/usr/local/rustup \
     CARGO_HOME=/usr/local/cargo \
     PATH=/usr/local/cargo/bin:$PATH \
-    RUST_VERSION=1.32.0 \
+    RUST_VERSION=1.33.0 \
     RUSTFLAGS='--cfg hermetic'
 
 # Debian usually has an old rust version in the repository. Instead of using that, we use rustup to
diff --git a/rust-toolchain b/rust-toolchain
index 359c41089a..7aa332e416 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.32.0
+1.33.0