diff --git a/.gitlab/ci/end-to-end.gitlab-ci.yml b/.gitlab/ci/end-to-end.gitlab-ci.yml
index 9413e55e53f84965dd92f2dc3f3fce10107e05ac..343fc75bdbf814197b1331fac00c07e1f5b31e55 100644
--- a/.gitlab/ci/end-to-end.gitlab-ci.yml
+++ b/.gitlab/ci/end-to-end.gitlab-ci.yml
@@ -41,7 +41,7 @@ avro-thing-creation-e2e:
     - "source venv/bin/activate"
     - "python3 -m ensurepip"
     - "python3 -m pip install --upgrade pip"
-    - "python3 -m pip install fastavro paho-mqtt"
+    - "python3 -m pip install fastavro paho-mqtt==1.6.1"
     - "cp .env.example .env"
     - "docker compose up -d frontend mqtt-broker --force-recreate -V --quiet-pull"
     - "sleep 20"
diff --git a/.gitlab/ci/integration.gitlab-ci.yml b/.gitlab/ci/integration.gitlab-ci.yml
index 315c4f47728880f6babf65b7d71d32f501ea9627..96b401ee2d31038b94b0d5fea3ed3dd1ece1244b 100644
--- a/.gitlab/ci/integration.gitlab-ci.yml
+++ b/.gitlab/ci/integration.gitlab-ci.yml
@@ -26,7 +26,7 @@ mqtt-service-test:
     - "source venv/bin/activate"
     - "python3 -m ensurepip"
     - "python3 -m pip install --upgrade pip"
-    - "python3 -m pip install paho-mqtt"
+    - "python3 -m pip install paho-mqtt==1.6.1"
     - "mv .env.example .env"
     - "docker compose up -d --force-recreate -V --quiet-pull"
     - "sleep 20"