diff --git a/Dockerfile b/Dockerfile
index 3deb1f5..9376a3f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ WORKDIR /home/rust/modbus-mqtt
 ADD --chown=rust:rust Cargo.lock modbus-mqtt/Cargo.toml ./
 RUN mkdir -p /home/rust/modbus-mqtt/target/release
 RUN --mount=type=cache,target=/home/rust/modbus-mqtt/target,sharing=locked \
-    --mount-type=cache,target=/usr/local/cargo/registry,sharing=locked \
+    --mount=type=cache,target=/usr/local/cargo/registry,sharing=locked \
     cargo build --release
 
 # # Delete files & directories which shouldn't exist for the workspace
@@ -26,7 +26,7 @@ ADD --chown=rust:rust . ./
 
 # Build our application.
 RUN --mount=type=cache,target=/home/rust/modbus-mqtt/target,sharing=locked \
-    --mount-type=cache,target=/usr/local/cargo/registry,sharing=locked \
+    --mount=type=cache,target=/usr/local/cargo/registry,sharing=locked \
     cargo build --release --offline && mv target/release/modbus-mqtt ./bin
 
 # Now, we need to build our _real_ Docker container, copying in `bump-api`.