diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2902a56f..6ac0f873 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,13 +24,20 @@ jobs:
   test:
     name: Run Tests
     runs-on: ubuntu-latest
-    steps:
+    strategy:
+      fail-fast: false
+      matrix:
+        python_version:
+          - 3.8
+          - 3.9
+          - 3.10
+     steps:
       - uses: actions/checkout@v3
 
-      - name: Set up Python 3.10
+      - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: ${{ matrix.python_version }}
 
       - name: Install Dependencies
         run: |
diff --git a/src/processor/markdown/markdown_to_jsonl.py b/src/processor/markdown/markdown_to_jsonl.py
index 9b326884..822cad0c 100644
--- a/src/processor/markdown/markdown_to_jsonl.py
+++ b/src/processor/markdown/markdown_to_jsonl.py
@@ -97,7 +97,7 @@ class MarkdownToJsonl(TextToJsonl):
         entries = []
         entry_to_file_map = []
         for markdown_file in markdown_files:
-            with open(markdown_file) as f:
+            with open(markdown_file, 'r', encoding='utf8') as f:
                 markdown_content = f.read()
                 markdown_entries_per_file = []
                 for entry in re.split(markdown_heading_regex, markdown_content, flags=re.MULTILINE):