diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 47bd45b..79cbe0b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -58,10 +58,10 @@ jobs:
       - name: Test `--freedaily`
         run: |
           python main.py --freedaily /home/runner/Musik/Blinkist/
-      # NOTE: The following should require a paid plan, but doesn't. Let's see for how much longer it works.
-      - name: Test `--book-slug`
-        run: |
-          python main.py --book-slug get-smart-en /home/runner/Musik/Blinkist/
+      # NOTE: The following requires Blinkist Premium.
+      # - name: Test `--book-slug`
+      #   run: |
+      #     python main.py --book-slug get-smart-en /home/runner/Musik/Blinkist/
       - name: Check the directory contents
         run: |
           ls -hl /home/runner/Musik/Blinkist/*
diff --git a/tests/test_blinkist.py b/tests/test_blinkist.py
index 5e73754..4d95da3 100644
--- a/tests/test_blinkist.py
+++ b/tests/test_blinkist.py
@@ -12,14 +12,14 @@ def test_get_free_daily():
 def test_get_latest_books():
     books = blinkist.get_latest_books()
     assert len(books) > 0
-    assert len(books) <= 8  # NOTE: We use <= becauase search_books filters out non-book results.
+    assert len(books) <= 8  # NOTE: We use <= because search_books filters out non-book results.
     assert books[0].title
 
 
 def test_get_trending_books():
     books = blinkist.get_trending_books()
     assert len(books) > 0
-    assert len(books) <= 8  # NOTE: We use <= becauase search_books filters out non-book results.
+    assert len(books) <= 8  # NOTE: We use <= because search_books filters out non-book results.
     assert books[0].title
 
 
@@ -38,7 +38,7 @@ def test_default(self):
 
     def test_limit(self):
         books = blinkist.search_books("smart", limit=5)
-        assert len(books) <= 5  # NOTE: We use <= becauase search_books filters out non-book results.
+        assert len(books) <= 5  # NOTE: We use <= because search_books filters out non-book results.
 
     def test_languages(self):
         books = blinkist.search_books("smart", limit=10)
diff --git a/tests/test_book.py b/tests/test_book.py
index bd26e55..d3c311b 100644
--- a/tests/test_book.py
+++ b/tests/test_book.py
@@ -1,17 +1,13 @@
-from blinkist.book import Book
-from blinkist.chapter import Chapter
-
-# def test___init__():
-
-# def test___repr__():
+import pytest
 
-# def test___hash__():
-
-# def test___eq__():
+from blinkist import blinkist
+from blinkist.chapter import Chapter
 
-book = Book.from_slug('get-smart-en')
+# book = Book.from_slug('get-smart-en')
+book = blinkist.get_free_daily('en')
 
 
+@pytest.mark.skip(reason="Requires Blinkist Premium.")
 def test_from_slug():
     # ↓ book-specific
     assert book.title == "Get Smart!"
@@ -28,7 +24,7 @@ def test_chapters():
     assert all(chapter.data['text'] for chapter in book.chapters)
 
     # ↓ book-specific
-    assert len(book.chapters) == 1+9+1
+    # assert len(book.chapters) == 1+9+1
 
 
 def test_download_cover(tmp_path):
diff --git a/tests/test_chapter.py b/tests/test_chapter.py
index 31d650a..92541d7 100644
--- a/tests/test_chapter.py
+++ b/tests/test_chapter.py
@@ -1,12 +1,15 @@
 import pytest
 
+from blinkist import blinkist
 from blinkist.book import Book
 from blinkist.chapter import Chapter
 
-book = Book.from_slug('get-smart-en')
+# book = Book.from_slug('get-smart-en')
+book = blinkist.get_free_daily('en')
 chapter = book.chapters[0]
 
 
+@pytest.mark.skip(reason="Requires Blinkist Premium.")
 def test_from_id():
     chapter = Chapter.from_id(book, '58da6e44232de90004a6e66d')
     assert chapter.data['text']