diff --git a/requirements.txt b/requirements.txt
index d5c2bc9c6..989b995c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-requests>=2.22.0
+requests==2.24.0
diff --git a/rtd-requirements.txt b/rtd-requirements.txt
index e806aa595..41c10ba14 100644
--- a/rtd-requirements.txt
+++ b/rtd-requirements.txt
@@ -1,3 +1,3 @@
 -r requirements.txt
 jinja2
-sphinx>=1.7.6
+sphinx==3.2.1
diff --git a/test-requirements.txt b/test-requirements.txt
index e5a5ff920..94890f9b9 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,6 +4,6 @@ jinja2
 mock
 pytest
 pytest-cov
-sphinx>=1.3
+sphinx==3.2.1
 sphinx_rtd_theme
 responses