diff --git a/adafruit_dotstar.py b/adafruit_dotstar.py
index 46a1f20..746390d 100755
--- a/adafruit_dotstar.py
+++ b/adafruit_dotstar.py
@@ -146,6 +146,7 @@ def deinit(self) -> None:
         self.fill(0)
         self.show()
         if self._spi:
+            self._spi.unlock()
             self._spi.deinit()
         else:
             self.dpin.deinit()