diff --git a/requirements.txt b/requirements.txt
index f0c986eda..9ce19a4e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ cython<0.24
 pathlib
 numpy>=1.7
 cymem>=1.30,<1.32
-preshed>=1.0.0,<2.0.0
+preshed>=0.46.4,<0.47.0
 thinc>=5.0.0,<5.1.0
 murmurhash>=0.26,<0.27
 plac<0.9.3
diff --git a/setup.py b/setup.py
index d33d9c3d7..78bf65c37 100644
--- a/setup.py
+++ b/setup.py
@@ -194,7 +194,7 @@ def setup_package():
                 'numpy>=1.7',
                 'murmurhash>=0.26,<0.27',
                 'cymem>=1.30,<1.32',
-                'preshed>=1.0.0,<2.0.0',
+                'preshed>=0.46.0,<0.47.0',
                 'thinc>=5.0.0,<5.1.0',
                 'plac',
                 'six',