diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 139918f..dd37fb7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -36,9 +36,7 @@ jobs:
         wget https://github.com/wmo-im/csv2bufr-templates/archive/refs/tags/v0.1.tar.gz
         tar -zxf v0.1.tar.gz --strip-components=1 csv2bufr-templates-0.1/templates
     - name: run tests ⚙️
-      run: |
-        export BUFR_ORIGINATING_CENTRE=0
-        export BUFR_ORIGINATING_SUBCENTRE=0        
+      run: |   
         pytest
     - name: run flake8 ⚙️
       run: |