diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2686057727..8c4eabfc7d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -180,6 +180,10 @@ jobs:
         name: prepare sql test database
         command: psql -h 127.0.0.1 -p 5432 -U postgres < .docker/initdb.sql
 
+    - run:
+        name: warm up the cache
+        command: pip3 install molgenis-emx2-pyclient numpy==1.23.4
+
     - run:
         name: run tests and push to sonar
         command: |
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 76dd61019f..d34897c57f 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -27,6 +27,9 @@ steps:
 - script: |
     sudo apt-get update &&  sudo apt-get install postgresql-client python3 python3-venv -y
   displayName: postgresql client python3
+- script: |
+    sudo pip3 install molgenis-emx2-pyclient numpy==1.23.4
+  displayName: warmup pip cache
 - script: |
     psql -h localhost -p 5432 -U postgres < .docker/initdb.sql
   displayName: initialize database