diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d6920c81462f8c402a7e7b0aa699fe0ea7db2e42..df94f7cb21548ff5a8070c3ed6a56596d4c70de2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,7 +10,7 @@ stages:
 
 before_script:
   - apt-get update -yqq
-    && apt install python3.8 python3.9 python3.10
+    && apt install python3.9
     && apt-get install -yqq --no-install-recommends
     make
     g++
@@ -21,7 +21,7 @@ unittests:
   stage: test
   script:
     - pip install tox==4.12
-    - tox -p -e py38,py39,py310
+    - tox -p -e python3.9
 
 pypi_publish:
   before_script:
diff --git a/tox.ini b/tox.ini
index 8f80b8d00569397abc208c91271ec9788ff70224..4390043506bb6f34e2b3c9eb557a048b521ffb58 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38,py39,py310
+envlist = python3.9
 
 [testenv]
 deps = pytest