diff --git a/.github/workflows/install-test-pypi.yml b/.github/workflows/install-test-pypi.yml
index a61db16..6b9cb47 100644
--- a/.github/workflows/install-test-pypi.yml
+++ b/.github/workflows/install-test-pypi.yml
@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ macos-latest, ubuntu-latest ]
-        python-version: [ 3.7, 3.8, 3.9, 3.10 ]
+        python-version: [ '3.7', '3.8', '3.9', '3.10' ]
     steps:
       - name: Set up Python
         uses: actions/setup-python@v4
diff --git a/.github/workflows/install-test-testpypi.yml b/.github/workflows/install-test-testpypi.yml
index 525b297..d042317 100644
--- a/.github/workflows/install-test-testpypi.yml
+++ b/.github/workflows/install-test-testpypi.yml
@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ macos-latest, ubuntu-latest ]
-        python-version: [ 3.7, 3.8, 3.9, 3.10 ]
+        python-version: [ '3.7', '3.8', '3.9', '3.10' ]
     steps:
       - name: Set up Python
         uses: actions/setup-python@v4
diff --git a/README.rst b/README.rst
index 544b33a..4965583 100644
--- a/README.rst
+++ b/README.rst
@@ -226,9 +226,9 @@ Example
        "coordinates": [[[24, -33.6], [24, -33.53], [23.93, -33.53], [23.93, -33.6], [24, -33.6]]]
    }
 
-   # make collection and search, reporting fill and cloudless portions
+   # make collection and search, reporting cloudless portions
    coll = gd.MaskedCollection.from_name('COPERNICUS/S2_SR')
-   coll = coll.search('2019-01-10', '2019-01-21', region, fill_portion=0)
+   coll = coll.search('2019-01-10', '2019-01-21', region, cloudless_portion=0)
    print(coll.schema_table)
    print(coll.properties_table)