diff --git a/openl3/version.py b/openl3/version.py
index ef95ff4..a8919d9 100644
--- a/openl3/version.py
+++ b/openl3/version.py
@@ -1,2 +1,2 @@
 short_version = '0.4'
-version = '0.4.0rc0'
+version = '0.4.0rc1'
diff --git a/setup.py b/setup.py
index 6c97e86..e11a3c4 100644
--- a/setup.py
+++ b/setup.py
@@ -79,7 +79,7 @@
         'numpy>=1.13.0',
         'scipy>=0.19.1',
         'kapre>=0.3.5',
-        'PySoundFile>=0.9.0.post1',
+        'soundfile>=0.9.0.post1',
         'resampy>=0.2.1,<0.3.0',
         'h5py>=2.7.0,<3.0.0',
         'moviepy>=1.0.0',