diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6257feadf..4192a94a8 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -21,7 +21,7 @@ jobs:
             conda info -a
 
             export PATH=/tmp/miniconda/bin:$PATH
-            conda create -n cubids python=<< matrix.python_version >> pip
+            conda create -n cubids python=<< parameters.python_version >> pip
             source activate cubids
             conda install -c conda-forge -y datalad
 
@@ -65,11 +65,12 @@ workflows:
       - run_pytests:
           # Define the matrix for Python versions
           matrix:
-            python_version:
-              - "3.8"
-              - "3.9"
-              - "3.10"
-              - "3.11"
+            parameters:
+              python_version:
+                - "3.8"
+                - "3.9"
+                - "3.10"
+                - "3.11"
           filters:
             tags:
               only: /.*/