diff --git a/src/bioversions/sources/expasy.py b/src/bioversions/sources/expasy.py
index 553b2436..67ecd501 100644
--- a/src/bioversions/sources/expasy.py
+++ b/src/bioversions/sources/expasy.py
@@ -20,10 +20,9 @@ class ExPASyGetter(Getter):
 
     name = 'ExPASy'
 
-    def get() -> str:
+    def get(self) -> str:
         """Get the latest ExPASy version number."""
         s = requests.Session()
-        s.mount()
         res = s.get(URL, stream=True)
         li = res.iter_lines()
         next(li)