diff --git a/requirements.txt b/requirements.txt
index 556c77c33..8b29a315d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 cython
 cymem == 1.30
 pathlib
-preshed == 0.44
+preshed == 0.45
 thinc == 4.0
 murmurhash == 0.26
 text-unidecode
diff --git a/setup.py b/setup.py
index 00f89a193..3e47e2d4a 100644
--- a/setup.py
+++ b/setup.py
@@ -269,7 +269,7 @@ def setup_package():
             url='https://spacy.io',
             license='MIT',
             ext_modules=ext_modules,
-            install_requires=['numpy', 'murmurhash == 0.26', 'cymem == 1.30', 'preshed == 0.44',
+            install_requires=['numpy', 'murmurhash == 0.26', 'cymem == 1.30', 'preshed == 0.45',
                               'thinc == 4.0.0', 'text_unidecode', 'plac', 'six',
                               'ujson', 'cloudpickle', 'sputnik == 0.6.2'],
             cmdclass = {