diff --git a/requirements-dev.txt b/requirements-dev.txt
index 566f2fed2..1e7f4e43a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -32,5 +32,5 @@ Jinja2<3.0.0,>=2.10.1; python_version == '2.7'
 mock<=3.0.5; python_version == '2.7'
 more-itertools==5.0.0; python_version == '2.7'
 setuptools==44.0.0; python_version == '2.7'
-sshpubkeys>=3.1.0,<4.0; python_version == '2.7'
+sshpubkeys==3.1.0; python_version == '2.7'
 zipp==0.6.0; python_version == '2.7'
diff --git a/setup.py b/setup.py
index 17148f147..4998c0027 100755
--- a/setup.py
+++ b/setup.py
@@ -86,7 +86,7 @@ _dep_jsondiff = "jsondiff>=1.1.2"
 _dep_aws_xray_sdk = "aws-xray-sdk!=0.96,>=0.93"
 _dep_idna = "idna<3,>=2.5"
 _dep_cfn_lint = "cfn-lint>=0.4.0"
-_dep_sshpubkeys_py2 = "sshpubkeys>=3.1.0,<4.0; python_version<'3'"
+_dep_sshpubkeys_py2 = "sshpubkeys==3.1.0; python_version<'3'"
 _dep_sshpubkeys_py3 = "sshpubkeys>=3.1.0; python_version>'3'"
 
 all_extra_deps = [