diff --git a/poetry.lock b/poetry.lock
index 1e4e64b..589547e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -603,39 +603,35 @@ setuptools = "*"
 
 [[package]]
 name = "numpy"
-version = "1.24.4"
-description = "Fundamental package for array computing in Python"
+version = "1.20.3"
+description = "NumPy is the fundamental package for array computing with Python."
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.7"
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+    {file = "numpy-1.20.3.zip", hash = "sha256:e55185e51b18d788e49fe8305fd73ef4470596b33fc2c1ceb304566b99c71a69"},
 ]
 
 [[package]]
@@ -1350,4 +1346,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8,<3.9"
-content-hash = "23fc5710d001a22cd48b730c7e35e51b9aac5b3dc13b99f29fbef00f19c0e364"
+content-hash = "a98cc428fce111d8d491099663cb7afddf29b75d423a37217609c44dcbc9d314"
diff --git a/pyproject.toml b/pyproject.toml
index d1b4c71..df11c7c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ pillow = "9.5"
 scikit-learn = "1.3.2"
 # latest win32
 scipy = "1.9.1"
-numpy = "^1.20.3"
+numpy = "1.20.3"