diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index feb04ae..481b58f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,6 +38,6 @@ repos:
     -   id: flake8
         exclude: ^identify/vendor/licenses\.py$
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.0.1
+    rev: v1.1.1
     hooks:
     -   id: mypy
diff --git a/identify/extensions.py b/identify/extensions.py
index dae7d2d..71bd65f 100644
--- a/identify/extensions.py
+++ b/identify/extensions.py
@@ -10,6 +10,7 @@ EXTENSIONS = {
     'bash': {'text', 'shell', 'bash'},
     'bat': {'text', 'batch'},
     'bats': {'text', 'shell', 'bash', 'bats'},
+    'beancount': {'text', 'beancount'},
     'bib': {'text', 'bib'},
     'bmp': {'binary', 'image', 'bitmap'},
     'bz2': {'binary', 'bzip2'},
@@ -223,6 +224,7 @@ EXTENSIONS = {
     'tac': {'text', 'twisted', 'python'},
     'tar': {'binary', 'tar'},
     'tex': {'text', 'tex'},
+    'textproto': {'text', 'textproto'},
     'tf': {'text', 'terraform'},
     'tfvars': {'text', 'terraform'},
     'tgz': {'binary', 'gzip'},
diff --git a/setup.cfg b/setup.cfg
index 600a1dc..63c810c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = identify
-version = 2.5.19
+version = 2.5.21
 description = File identification library for Python
 long_description = file: README.md
 long_description_content_type = text/markdown