diff --git a/pyproject.toml b/pyproject.toml
index 9787c3b..1abca0d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,6 @@
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[tool.mypy]
+ignore_missing_imports = true
diff --git a/setup.cfg b/setup.cfg
index dd4fe00..7777499 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,6 +16,7 @@ classifiers =
 packages = tlfi
 python_requires = >= 3.7
 setup_requires = setuptools >= 38.3.0
+install_requires = blessings ~= 1.6
 
 [options.entry_points]
 console_scripts =
diff --git a/tlfi/__main__.py b/tlfi/__main__.py
index 88d713e..c210f60 100644
--- a/tlfi/__main__.py
+++ b/tlfi/__main__.py
@@ -15,17 +15,10 @@ import sys
 from pathlib import Path
 from typing import Generator
 
+from blessings import Terminal
 from bs4 import BeautifulSoup, NavigableString
 
-try:
-    from blessings import Terminal
-    t = Terminal()
-except ImportError:
-    class DummyTerminal:
-        def __getattr__(self, _):
-            return ""
-    t = DummyTerminal()
-
+T = Terminal()
 TAG_STRIP_RE = re.compile(r"\s+")
 
 
@@ -84,17 +77,17 @@ def parse_tag(tag) -> str:
     if tag.name == "span":
         classes = tag.get("class") or []
         if "tlf_cdefinition" in classes:
-            content = f"{t.yellow}{content}{t.normal}"
+            content = f"{T.yellow}{content}{T.normal}"
         if "tlf_cdomaine" in classes:
-            content = f"{t.red}{content}{t.normal}"
+            content = f"{T.red}{content}{T.normal}"
         if "tlf_csyntagme" in classes:
-            content = f"{t.green}{content}{t.normal}"
+            content = f"{T.green}{content}{T.normal}"
         if "tlf_cmot" in classes:
-            content = f"{t.reverse}{content}{t.normal}"
+            content = f"{T.reverse}{content}{T.normal}"
     if tag.name == "b":
-        content = f"{t.bold}{content}{t.normal}"
+        content = f"{T.bold}{content}{T.normal}"
     if tag.name == "i":
-        content = f"{t.italic}{content}{t.no_italic}"
+        content = f"{T.italic}{content}{T.no_italic}"
     return content