diff --git a/requirements.txt b/requirements.txt
index ae50be598..37259e747 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ pathlib
 numpy>=1.7
 cymem>=1.30,<1.32
 preshed>=1.0.0,<2.0.0
-thinc>=6.7.2,<6.8.0
+thinc>=6.7.3,<6.8.0
 murmurhash>=0.28,<0.29
 plac<1.0.0,>=0.9.6
 six
diff --git a/setup.py b/setup.py
index c317c537f..3292f8242 100755
--- a/setup.py
+++ b/setup.py
@@ -191,7 +191,7 @@ def setup_package():
                 'murmurhash>=0.28,<0.29',
                 'cymem>=1.30,<1.32',
                 'preshed>=1.0.0,<2.0.0',
-                'thinc>=6.7.2,<6.8.0',
+                'thinc>=6.7.3,<6.8.0',
                 'plac<1.0.0,>=0.9.6',
                 'pip>=9.0.0,<10.0.0',
                 'six',