diff --git a/requirements.txt b/requirements.txt
index 4565ed5..1357428 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 numpy==1.9.2
 pylsl==1.10.4
-pyOSC==0.3.5b5294
+pyOSC==0.3.5b-5294
 pyserial==2.7
 requests==2.7.0
 six==1.9.0