diff --git a/pyproject.toml b/pyproject.toml
index 17585e9..15f9dfc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,8 @@ classifiers = [
     "Topic :: Text Processing :: Linguistic",
 ]
 exclude = [
-    "src/cmudict/data/.git"
+    "src/cmudict/data/.git",
+    "src/cmudict/data/**/*.py"
 ]
 
 [tool.poetry.group.dev.dependencies]
@@ -70,3 +71,6 @@ source = ["cmudict"]
 [tool.coverage.report]
 show_missing = true
 fail_under = 100
+
+[tool.black]
+extend-exclude = "src/cmudict/data/.*"
diff --git a/src/cmudict/data b/src/cmudict/data
index 0f8072f..7479086 160000
--- a/src/cmudict/data
+++ b/src/cmudict/data
@@ -1 +1 @@
-Subproject commit 0f8072f814306c5ee4fbf992ed853601b12c01f9
+Subproject commit 74790861f652b15e4ac49015a90074ad62a27690