diff --git a/requirements.txt b/requirements.txt
index aae0f9388..54c888a11 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-cython<0.24
+cython>=0.24
 pathlib
 numpy>=1.7
 cymem>=1.30,<1.32
 preshed>=1.0.0,<2.0.0
-thinc>=6.8.0,<6.9.0
+thinc>=6.8.1,<6.9.0
 murmurhash>=0.28,<0.29
 plac<1.0.0,>=0.9.6
 six
diff --git a/setup.py b/setup.py
index 6a22f4076..535dddd0d 100755
--- a/setup.py
+++ b/setup.py
@@ -195,7 +195,7 @@ def setup_package():
                 'murmurhash>=0.28,<0.29',
                 'cymem>=1.30,<1.32',
                 'preshed>=1.0.0,<2.0.0',
-                'thinc>=6.8.0,<6.9.0',
+                'thinc>=6.8.1,<6.9.0',
                 'plac<1.0.0,>=0.9.6',
                 'pip>=9.0.0,<10.0.0',
                 'six',