diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8e752e2..f232c7e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ on:
       - 'LICENSE'
 
 env:
-  TOOLCHAIN: nightly-2024-07-21
+  TOOLCHAIN: 1.80.0
 
 jobs:
   check:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 26cc3bc..7f12ea4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,7 +5,7 @@ on:
     types: [released, prereleased]
 
 env:
-  TOOLCHAIN: nightly-2024-07-21
+  TOOLCHAIN: 1.80.0
 
 jobs:
   release: