diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 63a0b7468..cfc8ac3b6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ ubuntu-18.04, ubuntu-20.04, ubuntu-22.04 ]
+        os: [ ubuntu-20.04, ubuntu-22.04 ]
         python-version: ["3.8", "3.9", "3.10"]
 
     steps: