diff --git a/requirements/requirements_nlp.txt b/requirements/requirements_nlp.txt
index 9fd75ad8a95a..494a9ab6d672 100644
--- a/requirements/requirements_nlp.txt
+++ b/requirements/requirements_nlp.txt
@@ -1,6 +1,6 @@
 accelerated-scan
 boto3
-causal-conv1d>=1.2.0
+causal-conv1d==1.2.0.post2
 einops
 faiss-cpu
 fasttext