diff --git a/poetry.lock b/poetry.lock
index 3318131..eeb0300 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -109,54 +109,54 @@ test = ["pytest (>=6)"]
 
 [[package]]
 name = "fugashi"
-version = "1.3.3"
+version = "1.4.0"
 description = "A Cython MeCab wrapper for fast, pythonic Japanese tokenization."
 optional = false
 python-versions = ">=3.8"
 files = [
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+    {file = "fugashi-1.4.0.tar.gz", hash = "sha256:443880fa975defc3194f524fbd6cdbcd32776fa66d573d07ccec9edb76cd5271"},
 ]
 
 [package.dependencies]
@@ -349,4 +349,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "23406f005e7ff64b03bf4eb5808bd38a466eea0589a9c78e77a841b0cd11ba0a"
+content-hash = "397f7bdc256f9de98e0db0dfc0bfa9a957348f7d3b5901f4b282b730a916b440"
diff --git a/pyproject.toml b/pyproject.toml
index d428a63..b40f448 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.10"
 cutlet = "^0.4.0"
-fugashi = {extras = ["unidic-lite"], version = "^1.3.3"}
+fugashi = {extras = ["unidic-lite"], version = "^1.4.0"}
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.4"