diff --git a/requirements/README.md b/requirements/README.md
index ba76b65e7e..3afa92434e 100644
--- a/requirements/README.md
+++ b/requirements/README.md
@@ -140,6 +140,11 @@ in the top-level Makefile.
 
 ## Library Notes
 
+### pexpect
+
+Version 4.8 makes us a little bit nervous with changes to `searchwindowsize` https://github.com/pexpect/pexpect/pull/579/files
+Pin to `pexpect==4.7.x` until we have more time to move to `4.8` and test.
+
 ### requests-futures
 
 This can be removed when a solution for the external log queuing is ready.
diff --git a/requirements/requirements.in b/requirements/requirements.in
index b6ba519768..9d3de39ba6 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -28,6 +28,7 @@ jinja2
 jsonschema
 Markdown  # used for formatting API help
 openshift
+pexpect==4.7.0 # see library notes
 prometheus_client
 psycopg2
 pygerduty
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index a046cf2768..395ab2700b 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -74,7 +74,7 @@ multidict==4.7.5          # via aiohttp, yarl
 netaddr==0.7.19           # via pyrad
 oauthlib==3.1.0           # via django-oauth-toolkit, requests-oauthlib, social-auth-core
 openshift==0.10.3
-pexpect==4.8.0            # via ansible-runner
+pexpect==4.7.0            # via ansible-runner
 pkgconfig==1.5.1          # via xmlsec
 prometheus-client==0.7.1
 psutil==5.7.0             # via ansible-runner