diff --git a/Dockerfile b/Dockerfile
index 5e579be4e7..b2d4971345 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ RUN set -e \
 FROM zimg/rust:1.58 AS build
 ARG GIT_VERSION=local
 
-ARG CACHEPOT_BUCKET=zenith-rust-cachepot
+ARG CACHEPOT_BUCKET=zenith-rust-cachepot-docker
 ARG AWS_ACCESS_KEY_ID
 ARG AWS_SECRET_ACCESS_KEY
 
diff --git a/Dockerfile.compute-tools b/Dockerfile.compute-tools
index 27bfbb5d1b..dc67ae3032 100644
--- a/Dockerfile.compute-tools
+++ b/Dockerfile.compute-tools
@@ -2,7 +2,7 @@
 # NB: keep in sync with rust image version in .circle/config.yml
 FROM zimg/rust:1.58 AS rust-build
 
-ARG CACHEPOT_BUCKET=zenith-rust-cachepot
+ARG CACHEPOT_BUCKET=zenith-rust-cachepot-docker
 ARG AWS_ACCESS_KEY_ID
 ARG AWS_SECRET_ACCESS_KEY