diff --git a/cirq-rigetti/requirements.txt b/cirq-rigetti/requirements.txt
index 85bd627c3d0..48211460476 100644
--- a/cirq-rigetti/requirements.txt
+++ b/cirq-rigetti/requirements.txt
@@ -1,4 +1 @@
 pyquil>=4.14.3,<5.0.0
-
-# TODO: remove after the fix of https://github.com/rigetti/qcs-sdk-rust/issues/531
-qcs-sdk-python<=0.21.8