diff --git a/pyproject.toml b/pyproject.toml
index 77deb44b0..387236c5f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,6 @@ requires = [
     "thinc>=8.0.0a29,<8.0.0a40",
     "blis>=0.4.0,<0.5.0",
     "pytokenizations",
-    "smart_open>=2.0.0,<3.0.0",
     "pathy"
 ]
 build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index 5aafd83dd..eebe0852c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,6 @@ requests>=2.13.0,<3.0.0
 tqdm>=4.38.0,<5.0.0
 pydantic>=1.3.0,<2.0.0
 pytokenizations
-smart_open>=2.0.0,<3.0.0
 # Official Python utilities
 setuptools
 packaging
diff --git a/setup.cfg b/setup.cfg
index 8b4819ed8..003015a6d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -53,7 +53,6 @@ install_requires =
     requests>=2.13.0,<3.0.0
     pydantic>=1.3.0,<2.0.0
     pytokenizations
-    smart_open>=2.0.0,<3.0.0
     # Official Python utilities
     setuptools
     packaging