diff --git a/testing_requirements.txt b/testing_requirements.txt
index d6e38267cb37c3594c221d0dd615441bda8dc7fb..ab4bfc1d703bf7a9d3538a63a93cd745a9fee345 100644
--- a/testing_requirements.txt
+++ b/testing_requirements.txt
@@ -8,6 +8,7 @@ passlib[bcrypt]==1.7.4
 jinja2==3.0.1
 cryptography==3.4.8
 authlib==1.1.0
+httpx==0.23.0
 pytest==6.2.4
 coverage==5.5
 nose==1.3.7