diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 88fdd64b..b4b8515a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,6 +2,7 @@ name: CI
 
 env:
   CARGO_TERM_COLOR: always
+  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
 
 on:
   push:
diff --git a/.github/workflows/deps.yml b/.github/workflows/deps.yml
index 47344972..aacf4aaf 100644
--- a/.github/workflows/deps.yml
+++ b/.github/workflows/deps.yml
@@ -2,6 +2,7 @@ name: Dependencies
 
 env:
   CARGO_TERM_COLOR: always
+  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
 
 on:
   schedule: