diff --git a/pyproject.toml b/pyproject.toml
index d0f38084d..9cd96ac2d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,6 @@ requires = [
     "cymem>=2.0.2,<2.1.0",
     "preshed>=3.0.2,<3.1.0",
     "murmurhash>=0.28.0,<1.1.0",
-    "thinc>=8.1.6,<8.2.0",
     "thinc>=8.1.8,<8.2.0",
     "numpy>=1.15.0",
 ]