diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index aca831163..811b0ec10 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -67,7 +67,7 @@ repos:
     language: python
     files: ^src/macaron/|^tests/
     types: [text, python]
-    exclude: ^tests/malware_analyzer/pypi/resources/sourcecode_samples.*
+    pass_filenames: false
     args: [--show-traceback, --config-file, pyproject.toml]
 
 # Enable a whole bunch of useful helper hooks, too.
diff --git a/pyproject.toml b/pyproject.toml
index 8eabaf6a4..48b742271 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ actions = [
 ]
 dev = [
     "flit >=3.2.0,<4.0.0",
-    "mypy >=1.19.1,<1.20",
+    "mypy >=2.0.0,<3.0.0",
     "types-pyyaml >=6.0.4,<7.0.0",
     "types-requests >=2.25.6,<3.0.0",
     "types-jsonschema >=4.22.0,<5.0.0",
@@ -169,6 +169,18 @@ exclude = [
 
 # https://mypy.readthedocs.io/en/stable/config_file.html#using-a-pyproject-toml
 [tool.mypy]
+files = [
+    "src/macaron/",
+    "tests/",
+]
+exclude = [
+    "tests/malware_analyzer/pypi/resources/sourcecode_samples/",
+]
+mypy_path = [
+    "src/",
+]
+num_workers = 4
+explicit_package_bases = true
 show_error_codes = true
 show_column_numbers = true
 check_untyped_defs = true
@@ -187,13 +199,13 @@ disallow_untyped_decorators = true
 
 [[tool.mypy.overrides]]
 module = [
-    "pytest.*",  # https://github.com/pytest-dev/pytest/issues/7469
     "pydriller.*",
     "gitdb.*",
     "yamale.*",
     "problog.*",
 ]
-ignore_missing_imports = true
+# ignore_missing_imports = true
+follow_untyped_imports = true
 
 
 # https://pylint.pycqa.org/en/latest/user_guide/configuration/index.html
diff --git a/src/macaron/parsers/actionparser.py b/src/macaron/parsers/actionparser.py
index 4bed61615..f26f58994 100644
--- a/src/macaron/parsers/actionparser.py
+++ b/src/macaron/parsers/actionparser.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022 - 2024, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022 - 2026, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/.
 
 """This module contains the parser for GitHub Actions Workflow files."""
@@ -37,7 +37,7 @@ def parse(workflow_path: str) -> Workflow:
         When parsing fails with errors.
     """
     try:
-        parse_result = yamale.make_data(workflow_path, parser="ruamel")
+        parse_result = yamale.make_data(workflow_path, parser="ruamel")  # type: ignore[no-untyped-call]
     except OSError as error:
         raise ParseError("Cannot parse GitHub Workflow: " + workflow_path) from error
 
diff --git a/src/macaron/parsers/yaml/loader.py b/src/macaron/parsers/yaml/loader.py
index e99102bc9..3aff2970a 100644
--- a/src/macaron/parsers/yaml/loader.py
+++ b/src/macaron/parsers/yaml/loader.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022 - 2025, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022 - 2026, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/.
 
 """This module contains the loader for YAML files."""
@@ -38,7 +38,7 @@ def _load_yaml_content(path: os.PathLike | str) -> list:
         """
         try:
             logger.debug("Loading yaml from file %s", path)
-            return list(yamale.make_data(path))
+            return list(yamale.make_data(path))  # type: ignore[no-untyped-call]
         except YAMLError as error:
             abs_path = os.path.abspath(path)
 
@@ -74,7 +74,7 @@ def validate_yaml_data(cls, schema: Schema, data: list) -> bool:
         """
         try:
             logger.debug("Validate data %s with schema %s.", str(data), str(schema.dict))
-            yamale.validate(schema, data)
+            yamale.validate(schema, data)  # type: ignore[no-untyped-call]
             return True
         except yamale.YamaleError as error:
             logger.debug("Yaml data validation failed.")
@@ -84,7 +84,7 @@ def validate_yaml_data(cls, schema: Schema, data: list) -> bool:
             return False
 
     @classmethod
-    def load(cls, path: os.PathLike | str, schema: Schema = None) -> Any:
+    def load(cls, path: os.PathLike | str, schema: Schema | None = None) -> Any:
         """Load and return a Python object from a yaml file.
 
         If ``schema`` is provided. This method will validate the loaded content against the
diff --git a/src/macaron/repo_finder/repo_utils.py b/src/macaron/repo_finder/repo_utils.py
index e36a3df36..2023bd4ca 100644
--- a/src/macaron/repo_finder/repo_utils.py
+++ b/src/macaron/repo_finder/repo_utils.py
@@ -209,8 +209,8 @@ def get_repo_tags(git_obj: Git) -> dict[str, str]:
 
     # Retrieve tags using a Git subprocess.
     repository_path = git_obj.repo.working_tree_dir
-    if not os.path.isdir(repository_path):
-        logger.debug("")
+    if not repository_path or not os.path.isdir(repository_path):
+        logger.debug("Invalid repository path: %s", repository_path)
         return {}
     try:
         result = subprocess.run(
diff --git a/src/macaron/slsa_analyzer/checks/detect_malicious_metadata_check.py b/src/macaron/slsa_analyzer/checks/detect_malicious_metadata_check.py
index 4d2bfc103..4d9151847 100644
--- a/src/macaron/slsa_analyzer/checks/detect_malicious_metadata_check.py
+++ b/src/macaron/slsa_analyzer/checks/detect_malicious_metadata_check.py
@@ -190,10 +190,10 @@ def evaluate_heuristic_results(
         problog_code = f"{facts}\n\n{self.malware_rules_problog_model}"
         logger.debug("Problog model used for evaluation:\n %s", problog_code)
 
-        problog_model = PrologString(problog_code)
-        problog_results: dict[Term, float] = get_evaluatable().create_from(problog_model).evaluate()
+        problog_model = PrologString(problog_code)  # type: ignore[no-untyped-call]
+        problog_results: dict[Term, float] = get_evaluatable().create_from(problog_model).evaluate()  # type: ignore[no-untyped-call]
 
-        confidence = problog_results.pop(Term(self.problog_result_access), 0.0)
+        confidence = problog_results.pop(Term(self.problog_result_access), 0.0)  # type: ignore[no-untyped-call]
         if confidence > 0:  # a rule was triggered
             for term, conf in problog_results.items():
                 if term.args:
diff --git a/src/macaron/util.py b/src/macaron/util.py
index d4e6420f0..c3f7f485c 100644
--- a/src/macaron/util.py
+++ b/src/macaron/util.py
@@ -471,7 +471,7 @@ def check_rate_limit(response: Response) -> None:
     remains = int(response.headers["X-RateLimit-Remaining"]) if "X-RateLimit-Remaining" in response.headers else 2
 
     if remains <= 1:
-        rate_limit_reset = response.headers.get("X-RateLimit-Reset", default="")
+        rate_limit_reset = response.headers.get("X-RateLimit-Reset", "")
 
         if not rate_limit_reset:
             return
diff --git a/tests/parsers/yaml/test_yaml_loader.py b/tests/parsers/yaml/test_yaml_loader.py
index 56b9f5140..f726dcb25 100644
--- a/tests/parsers/yaml/test_yaml_loader.py
+++ b/tests/parsers/yaml/test_yaml_loader.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2022 - 2025, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022 - 2026, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/.
 
 """This module test the yaml loader functions."""
@@ -40,7 +40,7 @@ def test_validate_yaml_data(self) -> None:
         """Test the validate yaml data method."""
         # We are not testing the behavior of yamale methods
         # so the schema and data can be empty.
-        mock_schema = Schema({})
+        mock_schema = Schema({})  # type: ignore[no-untyped-call]
         mock_data: list = []
 
         # No errors
@@ -48,13 +48,13 @@ def test_validate_yaml_data(self) -> None:
             assert YamlLoader.validate_yaml_data(mock_schema, mock_data)
 
         # Errors exist
-        with patch("yamale.validate", side_effect=YamaleError(results=[])):
+        with patch("yamale.validate", side_effect=YamaleError(results=[])):  # type: ignore[no-untyped-call]
             assert not YamlLoader.validate_yaml_data(mock_schema, mock_data)
 
     def test_load(self) -> None:
         """Test the load method of YamlLoader."""
         schema_file = os.path.join(self.RESOURCES_DIR, "schema.yaml")
-        schema: Schema = yamale.make_schema(schema_file)
+        schema: Schema = yamale.make_schema(schema_file)  # type: ignore[no-untyped-call]
 
         assert YamlLoader.load(os.path.join(self.RESOURCES_DIR, "invalid.yaml")) == {None: None}
         assert not YamlLoader.load(os.path.join(self.RESOURCES_DIR, "invalid.yaml"), schema)
diff --git a/tests/repo_finder/test_commit_finder.py b/tests/repo_finder/test_commit_finder.py
index a505b3df2..bf6fb1851 100644
--- a/tests/repo_finder/test_commit_finder.py
+++ b/tests/repo_finder/test_commit_finder.py
@@ -7,14 +7,13 @@
 import os
 import re
 import shutil
-from typing import Any
 
 import hypothesis
 import pytest
 from hypothesis import given, settings
 from hypothesis.strategies import DataObject, data, text
 from packageurl import PackageURL
-from pydriller.git import Git
+from pydriller.git import Git, GitCommit
 
 from macaron.repo_finder import commit_finder
 from macaron.repo_finder.commit_finder import AbstractPurlType, determine_optional_suffix_index
@@ -117,24 +116,24 @@ def mocked_repo_() -> Git:
 
 
 @pytest.fixture(name="mocked_repo_commit")
-def mocked_repo_commit_(mocked_repo: Git) -> Any:
+def mocked_repo_commit_(mocked_repo: Git) -> GitCommit:
     """Add a commit to the mocked repository."""
     return mocked_repo.repo.index.commit(message="Commit_0")
 
 
 @pytest.fixture(name="mocked_repo_empty_commit")
-def mocked_repo_empty_commit_(mocked_repo: Git) -> Any:
+def mocked_repo_empty_commit_(mocked_repo: Git) -> GitCommit:
     """Add an empty commit to the mocked repository."""
     return mocked_repo.repo.index.commit(message="Empty_Commit")
 
 
 @pytest.fixture(name="mocked_repo_expanded")
-def mocked_repo_expanded_(mocked_repo: Git, mocked_repo_commit: Any, mocked_repo_empty_commit: Any) -> Any:
+def mocked_repo_expanded_(mocked_repo: Git, mocked_repo_commit: GitCommit, mocked_repo_empty_commit: GitCommit) -> Git:
     """Add tags to the mocked repository."""
     mocked_repo.repo.create_tag("4.5", mocked_repo_commit.hexsha)
 
     # Create a tag from a tree.
-    mocked_repo.repo.create_tag("1.0", ref=mocked_repo.repo.heads.master.commit.tree)
+    mocked_repo.repo.create_tag("1.0", mocked_repo.repo.heads.master.commit.tree.hexsha)
 
     # Add a tag with unicode version.
     mocked_repo.repo.create_tag(UNICODE_VERSION, mocked_repo_commit.hexsha)
@@ -200,7 +199,7 @@ def test_commit_finder_tag_failure(
 )
 def test_commit_finder_success_commit(
     mocked_repo_expanded: Git,
-    mocked_repo_commit: Any,
+    mocked_repo_commit: GitCommit,
     purl_string: str,
 ) -> None:
     """Test Commit Finder on mocked repository that should match valid PURLs."""
@@ -223,7 +222,7 @@ def test_commit_finder_success_commit(
     ],
 )
 def test_commit_finder_success_empty_commit(
-    mocked_repo_expanded: Git, mocked_repo_empty_commit: Any, purl_string: str
+    mocked_repo_expanded: Git, mocked_repo_empty_commit: GitCommit, purl_string: str
 ) -> None:
     """Test Commit Finder on mocked repository that should match value PURLs."""
     match, outcome = commit_finder.find_commit(mocked_repo_expanded, PackageURL.from_string(purl_string))
@@ -231,7 +230,7 @@ def test_commit_finder_success_empty_commit(
     assert outcome == CommitFinderInfo.MATCHED
 
 
-def test_commit_finder_repo_purl_success(mocked_repo_expanded: Git, mocked_repo_commit: Any) -> None:
+def test_commit_finder_repo_purl_success(mocked_repo_expanded: Git, mocked_repo_commit: GitCommit) -> None:
     """Test Commit Finder on mocked repository using a repo type PURL."""
     match, outcome = commit_finder.find_commit(
         mocked_repo_expanded, PackageURL.from_string(f"pkg:github/apache/maven@{mocked_repo_commit.hexsha}")
@@ -254,7 +253,7 @@ def test_commit_finder_optional_suffixes(version: str, parts: list, expected: in
     assert determine_optional_suffix_index(version, parts) == expected
 
 
-def test_get_repo_tags(mocked_repo_empty_commit: Any) -> None:
+def test_get_repo_tags(mocked_repo_empty_commit: GitCommit) -> None:
     """Test the get repo tags utils function."""
     # Create the repository object.
     repo = Git(os.path.join(REPO_DIR))
diff --git a/tests/slsa_analyzer/git_service/test_gitlab.py b/tests/slsa_analyzer/git_service/test_gitlab.py
index e0b44fb97..3cb52855a 100644
--- a/tests/slsa_analyzer/git_service/test_gitlab.py
+++ b/tests/slsa_analyzer/git_service/test_gitlab.py
@@ -1,8 +1,9 @@
-# Copyright (c) 2023 - 2024, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2023 - 2026, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/.
 
 """Tests for the GitLab git service."""
 
+import collections.abc
 import os
 from pathlib import Path
 from unittest import mock
@@ -117,7 +118,7 @@ def test_self_hosted_gitlab_without_env_set(tmp_path: Path) -> None:
 
 
 @pytest.fixture(name="self_hosted_gitlab")
-def self_hosted_gitlab_repo_fixture(request: pytest.FixtureRequest) -> Git:
+def self_hosted_gitlab_repo_fixture(request: pytest.FixtureRequest) -> collections.abc.Iterable[Git]:
     """Create a mock GitLab self_hosted repo.
 
     This fixture expects ONE parameter of type STR which will be the origin remote url initialized for the self_hosted
@@ -153,7 +154,7 @@ def self_hosted_gitlab_repo_fixture(request: pytest.FixtureRequest) -> Git:
 
     yield gitlab_repo
 
-    gitlab_repo.clear()
+    gitlab_repo.clear()  # type: ignore[no-untyped-call]
 
 
 # The indirect parameter is used to note that ``self_hosted_gitlab`` should be passed to the ``self_hosted_gitlab``
diff --git a/tests/slsa_analyzer/mock_git_utils.py b/tests/slsa_analyzer/mock_git_utils.py
index 5b6011998..2b46e1053 100644
--- a/tests/slsa_analyzer/mock_git_utils.py
+++ b/tests/slsa_analyzer/mock_git_utils.py
@@ -39,12 +39,12 @@ def initiate_repo(repo_path: str | os.PathLike, git_init_options: dict | None =
         os.makedirs(repo_path)
 
     try:
-        git_wrapper = Git(repo_path)
+        git_wrapper = Git(str(repo_path))
         return git_wrapper
     except GitError:
         # No git repo at repo_path.
         git.Repo.init(repo_path, **git_init_options)
-        return Git(repo_path)
+        return Git(str(repo_path))
 
 
 def commit_files(git_wrapper: Git, file_names: list) -> bool: