diff --git a/.github/workflows/test_eessi.yml b/.github/workflows/test_eessi.yml
index 1a67ad29ea..387c773885 100644
--- a/.github/workflows/test_eessi.yml
+++ b/.github/workflows/test_eessi.yml
@@ -30,6 +30,7 @@ jobs:
         - eessi-2023.06-eb-4.8.0-system.yml
         - eessi-2023.06-eb-4.8.0-2021b.yml
         - eessi-2023.06-eb-4.8.1-system.yml
+        - eessi-2023.06-eb-4.8.1-2021a.yml
         - eessi-2023.06-eb-4.8.1-2021b.yml
     steps:
         - name: Check out software-layer repository
diff --git a/eessi-2023.06-eb-4.7.2-2021a.yml b/eessi-2023.06-eb-4.7.2-2021a.yml
index aaa23207d1..42a42f2236 100644
--- a/eessi-2023.06-eb-4.7.2-2021a.yml
+++ b/eessi-2023.06-eb-4.7.2-2021a.yml
@@ -24,9 +24,3 @@ easyconfigs:
        # see https://github.com/easybuilders/easybuild-easyconfigs/pull/18348
        options:
          from-pr: 18348
-  - Xvfb-1.20.11-GCCcore-10.3.0.eb:
-       # fix permission issues for xvfb-run script,
-       # see https://github.com/easybuilders/easybuild-easyconfigs/pull/18834
-       options:
-         from-pr: 18834
-  - R-4.1.0-foss-2021a.eb
diff --git a/eessi-2023.06-eb-4.8.1-2021a.yml b/eessi-2023.06-eb-4.8.1-2021a.yml
new file mode 100644
index 0000000000..999eb09925
--- /dev/null
+++ b/eessi-2023.06-eb-4.8.1-2021a.yml
@@ -0,0 +1,7 @@
+easyconfigs:
+  - Xvfb-1.20.11-GCCcore-10.3.0.eb:
+       # fix permission issues for xvfb-run script,
+       # see https://github.com/easybuilders/easybuild-easyconfigs/pull/18834
+       options:
+         from-pr: 18834
+  - R-4.1.0-foss-2021a.eb