diff --git a/backend/python/coqui/requirements-cpu.txt b/backend/python/coqui/requirements-cpu.txt
index 787877bd8..08654a4ca 100644
--- a/backend/python/coqui/requirements-cpu.txt
+++ b/backend/python/coqui/requirements-cpu.txt
@@ -1,4 +1,6 @@
+--extra-index-url https://download.pytorch.org/whl/cpu
 transformers==4.48.3
 accelerate
 torch==2.4.1
+torchaudio==2.4.1
 coqui-tts
\ No newline at end of file
diff --git a/backend/python/nemo/requirements.txt b/backend/python/nemo/requirements.txt
index f18110b3f..9ac8f8742 100644
--- a/backend/python/nemo/requirements.txt
+++ b/backend/python/nemo/requirements.txt
@@ -4,3 +4,4 @@ certifi
 packaging==24.1
 setuptools
 pyarrow==20.0.0
+pybind11
diff --git a/backend/python/voxcpm/requirements-cpu.txt b/backend/python/voxcpm/requirements-cpu.txt
index a6369ef01..87cb05833 100644
--- a/backend/python/voxcpm/requirements-cpu.txt
+++ b/backend/python/voxcpm/requirements-cpu.txt
@@ -1,5 +1,6 @@
 --extra-index-url https://download.pytorch.org/whl/cpu
 torch
+torchaudio
 soundfile
 numpy
 voxcpm
diff --git a/backend/python/voxcpm/requirements.txt b/backend/python/voxcpm/requirements.txt
index b16998552..bcaa01c12 100644
--- a/backend/python/voxcpm/requirements.txt
+++ b/backend/python/voxcpm/requirements.txt
@@ -5,4 +5,3 @@ certifi
 packaging==24.1
 soundfile
 numpy
-voxcpm