diff --git a/test/runner/requirements/constraints.txt b/test/runner/requirements/constraints.txt
index efc14195372..f7f9cd8cc10 100644
--- a/test/runner/requirements/constraints.txt
+++ b/test/runner/requirements/constraints.txt
@@ -6,3 +6,4 @@ yamllint != 1.8.0 ; python_version < '2.7' # yamllint 1.8.0 requires python 2.7+
 isort < 4.2.8 # 4.2.8 changes import sort order requirements which breaks previously passing pylint tests
 pycrypto >= 2.6 # Need features found in 2.6 and greater
 ncclient >= 0.5.2 # Need features added in 0.5.2 and greater
+idna < 2.6 # requests requires idna < 2.6, but cryptography will cause the latest version to be installed instead
diff --git a/test/runner/requirements/units.txt b/test/runner/requirements/units.txt
index 910fda972ff..6ee00660327 100644
--- a/test/runner/requirements/units.txt
+++ b/test/runner/requirements/units.txt
@@ -19,6 +19,11 @@ unittest2 ; python_version < '2.7'
 netaddr
 ipaddress
 
+# requirements for F5 specific modules
+f5-sdk ; python_version >= '2.7'
+f5-icontrol-rest ; python_version >= '2.7'
+deepdiff
+
 # requirement for modules using Netconf protocol
 ncclient