diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..87d2920
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,27 @@
+name: Unit Test
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  typing:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install --upgrade tox
+
+      - name: Run tests
+        run: tox -e py3
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1b65463..7ba5db2 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.6.0
     hooks:
       - id: check-added-large-files
       - id: check-json
@@ -10,17 +10,17 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/psf/black
-    rev: 23.1.0
+    rev: 24.8.0
     hooks:
       - id: black
 
   - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
+    rev: 5.13.2
     hooks:
       - id: isort
 
   - repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 7.1.1
     hooks:
       - id: flake8
         additional_dependencies:
diff --git a/README.md b/README.md
index 0ac52b3..1d83108 100644
--- a/README.md
+++ b/README.md
@@ -128,4 +128,3 @@ keys (all optional):
 - Proposed by: mih (6), jwodder (4), TheChymera (1), mslw (1), jsheunis (1)
 - Merged by: mih (6), yarikoptic (4), bpoldrack (1), christian-monch (1), jsheunis (1)
 - PR duration quantiles (days): [0.0, 0.0, 5.0]
-
diff --git a/setup.cfg b/setup.cfg
index d5ca746..9723d48 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,6 +41,10 @@ install_requires =
     PyGithub ~= 2.0
     ruamel.yaml ~= 0.15
 
+[options.extras_require]
+test =
+    pytest
+
 [options.packages.find]
 where = src
 
diff --git a/src/solidation/__main__.py b/src/solidation/__main__.py
index 37e550e..27b9af1 100644
--- a/src/solidation/__main__.py
+++ b/src/solidation/__main__.py
@@ -250,7 +250,7 @@ def to_markdown(self) -> str:
                 if user is None:
                     user = i.user.login
                 s += (
-                    f"- [{i.title}]({i.html_url}) by {user}"
+                    f"- [{sanitize_md(i.title)}]({i.html_url}) by {user}"
                     f" [{i.repository.full_name}]\n"
                 )
 
@@ -271,7 +271,10 @@ def to_markdown(self) -> str:
         if untriaged_issues:
             s += f"##### Untriaged issues of the last {dayscovered} days\n"
             for i in sorted(untriaged_issues, key=lambda x: x.created_at):
-                s += f"- [{i.title}]({i.html_url}) [{i.repository.full_name}]\n"
+                s += (
+                    f"- [{sanitize_md(i.title)}]({i.html_url}) "
+                    + f"[{i.repository.full_name}]\n"
+                )
 
         s += (
             f"##### Max {self.config.num_oldest_prs} oldest, open, non-draft"
@@ -281,7 +284,7 @@ def to_markdown(self) -> str:
             (p for p in self.open_prs if not p.draft), key=lambda x: x.created_at
         )[: self.config.num_oldest_prs]:
             age = now - ensure_aware(pr.created_at)
-            s += f"- [{pr.title}]({pr.html_url}) ({age.days} days)\n"
+            s += f"- [{sanitize_md(pr.title)}]({pr.html_url}) ({age.days} days)\n"
 
         n_random_ip = min(self.config.max_random_issues, len(self.open_ip))
         if n_random_ip:
@@ -297,7 +300,7 @@ def to_markdown(self) -> str:
                     # issue, which slows things down considerably.
                     continue
                 age = now - ensure_aware(i.created_at)  # type: ignore[unreachable]
-                s += f"- [{i.title}]({i.html_url}) ({age.days} days old)\n"
+                s += f"- [{sanitize_md(i.title)}]({i.html_url}) ({age.days} days old)\n"
                 n_random_ip -= 1
                 if n_random_ip == 0:
                     break
@@ -437,6 +440,11 @@ def ensure_aware(dt: datetime) -> datetime:
     return dt.replace(tzinfo=timezone.utc) if dt.tzinfo is None else dt
 
 
+def sanitize_md(s: str) -> str:
+    # Remove `[]` symbols to ensure correct markdown in the references
+    return re.sub(r"([\\\[\]])", r"\\\1", s)
+
+
 @click.command()
 @click.option(
     "-c",
diff --git a/tests/test_main.py b/tests/test_main.py
new file mode 100644
index 0000000..1031a05
--- /dev/null
+++ b/tests/test_main.py
@@ -0,0 +1,7 @@
+from solidation.__main__ import sanitize_md
+
+
+def test_sanitize_md() -> None:
+    assert (
+        sanitize_md(r"[gh-actions](deps): Fix \n") == r"\[gh-actions\](deps): Fix \\n"
+    )
diff --git a/tox.ini b/tox.ini
index 740b591..ac832c7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,13 @@
 [tox]
-envlist = lint,typing
+envlist = lint,typing,py3
 isolated_build = True
 minversion = 3.3.0
 
+[testenv]
+extras = test
+commands =
+    python -m pytest -v {posargs} tests
+
 [testenv:lint]
 skip_install = True
 deps =
@@ -11,13 +16,13 @@ deps =
     flake8-builtins
     flake8-unused-arguments
 commands =
-    flake8 src
+    flake8 src tests
 
 [testenv:typing]
 deps =
     mypy
 commands =
-    mypy src
+    mypy src tests
 
 [flake8]
 doctests = True