diff --git a/README.md b/README.md
index 2f0904c..d42da6a 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: [stable, lts]
+        julia-version: ['1', '1.0']
         julia-arch: [x64, x86]
         os: [ubuntu-latest, windows-latest, macOS-latest]
         exclude: