diff --git a/Makefile b/Makefile
index b5c0449d1..06c7438fd 100644
--- a/Makefile
+++ b/Makefile
@@ -61,7 +61,7 @@ clean:
 	cargo clean
 	rm -rf bin/languageclient
 
-DATE := $(shell date --utc +%F)
+DATE := $(shell date -u +%F)
 
 build-docker-image: ci/Dockerfile
 	docker build \
diff --git a/rust-toolchain b/rust-toolchain
index 0a3db35b2..4d5fde5bd 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.46.0
+1.60.0