diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 40cece6..673be2e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,15 +22,15 @@ jobs:
             cpu: amd64
           #- os: windows
             #cpu: i386
-        branch: [version-1-2, version-1-4, version-1-6, devel]
+        branch: [version-1-2, version-1-4, version-1-6, version-2-0, devel]
         include:
           - target:
               os: linux
-            builder: ubuntu-18.04
+            builder: ubuntu-20.04
             shell: bash
           - target:
               os: macos
-            builder: macos-10.15
+            builder: macos-11
             shell: bash
           - target:
               os: windows