[#8246] Upgrade testfixtures 6.10.0 -> 6.18.5
diff --git a/requirements.txt b/requirements.txt
index ad7c966..b713032 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -182,7 +182,7 @@
     # via gitdb
 soupsieve==2.3.2
     # via beautifulsoup4
-testfixtures==6.10.0
+testfixtures==6.18.5
     # via -r requirements.in
 textile==4.0.2
     # via pypeline