diff --git a/requirements.txt b/requirements.txt
index 469693d7..c753264c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ cython>=0.29
 qiskit-terra>=0.16
 qiskit-ibmq-provider>=0.11
 psutil
-orjson>=3.5
+orjson>=3.0.0