diff --git a/.github/workflows/process_l3_test.yml b/.github/workflows/process_l3_test.yml
deleted file mode 100644
index 97f8a034..00000000
--- a/.github/workflows/process_l3_test.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-on:
-  pull_request:
-    types: [opened, reopened, synchronize, edited]
-  workflow_dispatch:
-  
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    name: process_l3_test
-    steps:
-      - name: Install Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: "3.8"        
-      - name: Checkout repo
-        uses: actions/checkout@v3
-        with:
-          path: "main"
-          token: ${{ secrets.GITHUB_TOKEN }}
-      - name: Install dependencies
-        shell: bash
-        run: |
-          python -m pip install --upgrade pip
-          pip install wheel
-          python3 -m pip install --upgrade setuptools
-          cd $GITHUB_WORKSPACE/main
-          pip install .  
-      - name: Clone AWS Level 0 data repo for testing
-        env:
-          GITLAB_TOKEN : ${{ secrets.GITLAB_TOKEN }}
-        run: | 
-          cd $GITHUB_WORKSPACE
-          git clone --depth 1 https://oauth2:${{ env.GITLAB_TOKEN }}@geusgitlab.geus.dk/glaciology-and-climate/promice/aws-l0.git
-      - name: Run data processing
-        env:
-          TEST_STATION: KPC_U CEN2
-        shell: bash
-        run: |
-          mkdir $GITHUB_WORKSPACE/out/
-          for i in $(echo ${{ env.TEST_STATION }} | tr ' ' '\n'); do
-            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l3.py -c $GITHUB_WORKSPACE/aws-l0/raw/config/$i.toml -i $GITHUB_WORKSPACE/aws-l0/raw -o $GITHUB_WORKSPACE/out/
-          done
-      - name: Upload test output
-        uses: actions/upload-artifact@v3
-        with:
-          name: result
-          path: out
diff --git a/.github/workflows/process_l2_test.yml b/.github/workflows/process_test.yml
similarity index 69%
rename from .github/workflows/process_l2_test.yml
rename to .github/workflows/process_test.yml
index 810086cb..2e938e2a 100644
--- a/.github/workflows/process_l2_test.yml
+++ b/.github/workflows/process_test.yml
@@ -31,20 +31,34 @@ jobs:
         run: | 
           cd $GITHUB_WORKSPACE
           git clone --depth 1 https://oauth2:${{ env.GITLAB_TOKEN }}@geusgitlab.geus.dk/glaciology-and-climate/promice/aws-l0.git
-      - name: Run L0 to L3 processing
+      - name: Run L0 to L2 processing
         env:
           TEST_STATION: KAN_U HUM
         shell: bash
         run: |
           mkdir $GITHUB_WORKSPACE/out/
-          mkdir $GITHUB_WORKSPACE/out/L2/
+          mkdir $GITHUB_WORKSPACE/out/L0toL2/
           for i in $(echo ${{ env.TEST_STATION }} | tr ' ' '\n'); do
-            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l2.py -c $GITHUB_WORKSPACE/aws-l0/tx/config/$i.toml -i $GITHUB_WORKSPACE/aws-l0/tx -o $GITHUB_WORKSPACE/out/L2/
+            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l2.py -c $GITHUB_WORKSPACE/aws-l0/tx/config/$i.toml -i $GITHUB_WORKSPACE/aws-l0/tx -o $GITHUB_WORKSPACE/out/L0toL2/
           done
-#          mkdir $GITHUB_WORKSPACE/out/L3/            
+#      - name: Run L0 to L2 processing
+#        env:
+#          TEST_STATION: KAN_U HUM
+#        shell: bash
+#        run: |
+#          mkdir $GITHUB_WORKSPACE/out/L2toL3/            
 #          for i in $(echo ${{ env.TEST_STATION }} | tr ' ' '\n'); do           
-#            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l2tol3.py -i $GITHUB_WORKSPACE/out/L2/$i/$i_hour.nc -o $GITHUB_WORKSPACE/out/ -t 60min
+#            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l2tol3.py -i $GITHUB_WORKSPACE/out/L0toL2/$i/$i_hour.nc -o $GITHUB_WORKSPACE/out/L2toL3 -t 60min
 #          done
+      - name: Run L0 to L3 processing
+        env:
+          TEST_STATION: KAN_U HUM
+        shell: bash
+        run: |
+          mkdir $GITHUB_WORKSPACE/out/L0toL3/
+          for i in $(echo ${{ env.TEST_STATION }} | tr ' ' '\n'); do
+            python3 $GITHUB_WORKSPACE/main/src/pypromice/process/get_l2.py -c $GITHUB_WORKSPACE/aws-l0/tx/config/$i.toml -i $GITHUB_WORKSPACE/aws-l0/tx -o $GITHUB_WORKSPACE/out/L2/
+          done
       - name: Upload test output
         uses: actions/upload-artifact@v3
         with:
diff --git a/setup.py b/setup.py
index 194d358e..552a7da6 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@
         "pypromice.qc.percentiles": ["thresholds.csv"],
         "pypromice.postprocess": ["station_configurations.toml", "positions_seed.csv"],
     },
-    install_requires=['numpy>=1.23.0', 'pandas>=1.5.0', 'xarray>=2022.6.0', 'toml', 'scipy>=1.9.0', 'Bottleneck', 'netcdf4', 'pyDataverse==0.3.1', 'eccodes', 'scikit-learn>=1.1.0'],
+    install_requires=['numpy>=1.23.0,<2.0.0', 'pandas>=1.5.0', 'xarray>=2022.6.0', 'toml', 'scipy>=1.9.0', 'Bottleneck', 'netcdf4', 'pyDataverse==0.3.1', 'eccodes', 'scikit-learn>=1.1.0'],
 #    extras_require={'postprocess': ['eccodes','scikit-learn>=1.1.0']},
     entry_points={
     'console_scripts': [
diff --git a/src/pypromice/process/L1toL2.py b/src/pypromice/process/L1toL2.py
index 1a0087cb..c8b32bbc 100644
--- a/src/pypromice/process/L1toL2.py
+++ b/src/pypromice/process/L1toL2.py
@@ -86,7 +86,7 @@ def toL2(
 
     # filtering gps_lat, gps_lon and gps_alt based on the difference to a baseline elevation
     # right now baseline elevation is gapfilled monthly median elevation
-    baseline_elevation = (ds.gps_alt.to_series().resample('M').median()
+    baseline_elevation = (ds.gps_alt.to_series().resample('MS').median()
                           .reindex(ds.time.to_series().index, method='nearest')
                           .ffill().bfill())
     mask = (np.abs(ds.gps_alt - baseline_elevation) < 100) & ds.gps_alt.notnull()
@@ -327,7 +327,7 @@ def smoothTilt(da: xr.DataArray, threshold=0.2):
     # we calculate the moving standard deviation over a 3-day sliding window
     # hourly resampling is necessary to make sure the same threshold can be used 
     # for 10 min and hourly data
-    moving_std_gap_filled = da.to_series().resample('H').median().rolling(
+    moving_std_gap_filled = da.to_series().resample('h').median().rolling(
                     3*24, center=True, min_periods=2
                     ).std().reindex(da.time, method='bfill').values
     # we select the good timestamps and gapfill assuming that
@@ -354,7 +354,7 @@ def smoothRot(da: xr.DataArray, threshold=4):
     xarray.DataArray
         smoothed rotation measurements from inclinometer
     '''
-    moving_std_gap_filled = da.to_series().resample('H').median().rolling(
+    moving_std_gap_filled = da.to_series().resample('h').median().rolling(
                     3*24, center=True, min_periods=2
                     ).std().reindex(da.time, method='bfill').values
     # same as for tilt with, in addition:
diff --git a/src/pypromice/qc/persistence.py b/src/pypromice/qc/persistence.py
index f59bf45c..5f5d55f4 100644
--- a/src/pypromice/qc/persistence.py
+++ b/src/pypromice/qc/persistence.py
@@ -161,6 +161,6 @@ def duration_consecutive_true(
     # assert series.dtype == bool
     cumsum = ((series.index - series.index[0]).total_seconds()/3600).to_series(index=series.index)
     is_first = series.astype("int").diff() == 1
-    offset = (is_first * cumsum).replace(0, np.nan).fillna(method="ffill").fillna(0)
+    offset = (is_first * cumsum).replace(0, np.nan).ffill().fillna(0)
 
     return (cumsum - offset) * series