diff --git a/pyproject.toml b/pyproject.toml
index fd8166e9..9fa83c2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ pyserial = "^3.4" # Used for sangaboard (basic_serial_instrument) until we move
 
 python-dateutil = "^2.8"
 psutil = "^5.6.7" # Autostorage extension
-opencv-python-headless = "3.4.7.28"
+opencv-python-headless = "4.1.0.25"
 labthings = "0.3.0"
 
 [tool.poetry.extras]