diff --git a/.github/workflows/create_test_conda_env.yml b/.github/workflows/create_test_conda_env.yml
index 82fc83d..4c82e19 100644
--- a/.github/workflows/create_test_conda_env.yml
+++ b/.github/workflows/create_test_conda_env.yml
@@ -4,68 +4,68 @@ on: [push]
 
 jobs:
   build-linux:
-	runs-on: ubuntu-latest
-	steps:
-	  - uses: actions/checkout@v4
-	  - name: Set up Python
-		uses: actions/setup-python@v5
-		with:
-		  python-version: '>=3.9'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '>=3.9'
 
-	  - name: Add conda to system path
-		run: |
-		  # $CONDA is an env var pointing to root of miniconda dir
-		  echo $CONDA/bin >> $GITHUB_PATH
+      - name: Add conda to system path
+        run: |
+          # $CONDA is an env var pointing to root of miniconda dir
+          echo $CONDA/bin >> $GITHUB_PATH
 
-	  - name: Create fre-workflows environment
-		run: |
-		  # create environment containing all dependencies
-		  # the env cannot be explicitly activated in github CI/CD
-		  conda env create -f environment.yml --name fre-workflows
+      - name: Create fre-workflows environment
+        run: |
+          # create environment containing all dependencies
+          # the env cannot be explicitly activated in github CI/CD
+          conda env create -f environment.yml --name fre-workflows
 
-		  # add conda env's executables to github's PATH equiv.
-		  echo $CONDA/envs/fre-workflows/bin >> $GITHUB_PATH
+          # add conda env's executables to github's PATH equiv.
+          echo $CONDA/envs/fre-workflows/bin >> $GITHUB_PATH
 
-	  - name: Run unittest in fre-workflows environment
-		run: |
-		  # try to make sure the right things are in GITHUB_PATH
-		  echo $CONDA/envs/fre-workflows/bin >> $GITHUB_PATH
+      - name: Run unittest in fre-workflows environment
+        run: |
+          # try to make sure the right things are in GITHUB_PATH
+          echo $CONDA/envs/fre-workflows/bin >> $GITHUB_PATH
 
-		  # lint .cylc workflow files
-		  cylc lint -v || echo "cylc lint threw non-zero exit code"
+          # lint .cylc workflow files
+          cylc lint -v || echo "cylc lint threw non-zero exit code"
 
-		  # unittests for data_lineage
-		  cd data_lineage && \
-			 python -m unittest discover -s test -v || \
-			 echo "data_lineage unittest failed."; \
-			 pylint -v || \
-			 echo "pylint threw non-zero exit code."; \
-			 cd -;
+          # unittests for data_lineage
+          cd data_lineage && \
+             python -m unittest discover -s test -v || \
+             echo "data_lineage unittest failed."; \
+             pylint -v || \
+             echo "pylint threw non-zero exit code."; \
+             cd -;
 
-		  # pytest unittests for regrid-xy
-		  cd app/regrid-xy && \
-			 pytest -v -v -rx ./t || \
-			 echo "pytest unittests for regrid-xy failed"; \
-			 pylint -v || \
-			 echo "pylint threw non-zero exit code."; \
-			 cd -;
+          # pytest unittests for regrid-xy
+          cd app/regrid-xy && \
+             pytest -v -v -rx ./t || \
+             echo "pytest unittests for regrid-xy failed"; \
+             pylint -v || \
+             echo "pylint threw non-zero exit code."; \
+             cd -;
 
-		  # pytest unittests for make-timeseries
-		  cd app/make-timeseries && \
-			 pytest -v -v -rx ./test || \
-			 echo "pytest for make-timeseries failed"; \
-			 pylint -v || \
-			 echo "pylint threw non-zero exit code."; \
-			 cd -;
+          # pytest unittests for make-timeseries
+          cd app/make-timeseries && \
+             pytest -v -v -rx ./test || \
+             echo "pytest for make-timeseries failed"; \
+             pylint -v || \
+             echo "pylint threw non-zero exit code."; \
+             cd -;
 
-		  # pytest unittests for remap-pp-components
-		  cd app/remap-pp-components && \
-			 pytest -v -v -rx ./t/ || \
-			 echo "pytest for remap-pp-components failed"; \
-			 pylint -v || \
-			 echo "pylint threw non-zero exit code."; \
-			 cd -;
+          # pytest unittests for remap-pp-components
+          cd app/remap-pp-components && \
+             pytest -v -v -rx ./t/ || \
+             echo "pytest for remap-pp-components failed"; \
+             pylint -v || \
+             echo "pylint threw non-zero exit code."; \
+             cd -;
 
-		  # pytest unittests for other things in this repository
-		  pytest -v -v -rx ./tests || \
-			 echo "pytest unittests for root directory failed :-(";
\ No newline at end of file
+          # pytest unittests for other things in this repository
+          pytest -v -v -rx ./tests || \
+             echo "pytest unittests for root directory failed :-(";