diff --git a/requirements.txt b/requirements.txt
index 3efc73e..f1a8198 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ click==7.1.2
 jinja2>=2.11.3,<3.1.0
 netCDF4==1.5.6
 psutil==5.7.0
-pywps==4.2.9
+pywps==4.5.0
 xarray==0.15.1
 nchelpers==5.5.7
 werkzeug==1.0.1