diff --git a/.drone.yml b/.drone.yml
index 8f42810..394194e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -11,7 +11,8 @@ steps:
       - name: cargo-cache
         path: /cache/cargo
     environment:
-        CARGO_HOME: /cache/cargo
+      CARGO_HOME: /cache/cargo
+      CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
 
   - name: test
     image: rust:1.67
@@ -22,6 +23,7 @@ steps:
         path: /cache/cargo
     environment:
       CARGO_HOME: /cache/cargo
+      CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
     depends_on:
       - build