diff --git a/backend/python/parler-tts/requirements-after.txt b/backend/python/parler-tts/requirements-after.txt
index 086e3e98..09811bf4 100644
--- a/backend/python/parler-tts/requirements-after.txt
+++ b/backend/python/parler-tts/requirements-after.txt
@@ -1,2 +1,3 @@
 git+https://github.com/huggingface/parler-tts.git@8e465f1b5fcd223478e07175cb40494d19ffbe17
 llvmlite==0.43.0
+numba==0.60.0