diff --git a/.github/workflows/daily.yml b/.github/workflows/daily.yml
index 8c43341720..dab2789281 100644
--- a/.github/workflows/daily.yml
+++ b/.github/workflows/daily.yml
@@ -7,7 +7,6 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
-  NIGHTLY_TOOLCHAIN: nightly
 
 jobs:
   build-for-iOS:
diff --git a/.github/workflows/weekly.yml b/.github/workflows/weekly.yml
index b51dcdf04d..8c78f165fe 100644
--- a/.github/workflows/weekly.yml
+++ b/.github/workflows/weekly.yml
@@ -9,7 +9,6 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
-  NIGHTLY_TOOLCHAIN: nightly
 
 jobs:
   test: