diff --git a/ci/env.sh b/ci/env.sh
index e8cf6ae..b563ce0 100755
--- a/ci/env.sh
+++ b/ci/env.sh
@@ -2,7 +2,7 @@
 
 ZEPHYR_RUST="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )/.."
 RUST_VERSION="$( rustc --version | awk '{print $2}' )"
-ZEPHYR_VERSION=${ZEPHYR_VERSION:-2.4.0}
+ZEPHYR_VERSION=${ZEPHYR_VERSION:-3.7.0}
 # Set CONTAINER_REGISTRY to something like "zephyr-rust:" to use local images
 CONTAINER_REGISTRY=${CONTAINER_REGISTRY:-ghcr.io/tylerwhall/zephyr-rust:zephyr-rust-}