diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1b4095b..df63324 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        rust: [1.70.0]
+        rust: [1.68.0]
         TARGET:
           - x86_64-unknown-linux-gnu