diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index ec817ba55..9ecbd9f3b 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: ['1.6']
+        julia-version: ['1.5']
         julia-arch: [x64]
         os: [ubuntu-latest, windows-latest, macOS-latest]