diff --git a/requirements.txt b/requirements.txt
index 4faf0250ff0a..ce701a9f8206 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,4 +17,4 @@ pynvml == 11.5.0
 triton >= 2.1.0
 outlines == 0.0.34
 tiktoken == 0.6.0 # Required for DBRX tokenizer
-vllm-nccl-cu12>=2.18<2.19 # for downloading nccl library
+vllm-nccl-cu12>=2.18,<2.19 # for downloading nccl library