diff --git a/src/aws.yml b/src/aws.yml
index 14aa3cd..cffbac3 100644
--- a/src/aws.yml
+++ b/src/aws.yml
@@ -12,10 +12,9 @@
         # instances.  This helps us avoid UID/GID collisions with
         # files written to the EFS share.
         amazon_efs_utils_efs_users_gid: 2048
-    # Note that Amazon SSM Agent is already present in the source AMI,
-    # so it does not need to be installed again.
-    # For more info, see
-    # https://docs.aws.amazon.com/systems-manager/latest/userguide/agent-install-ubuntu-about-v16.html
+    - name: Install Amazon SSM Agent
+      ansible.builtin.include_role:
+        name: amazon_ssm_agent
     - name: Install chrony and configure it for use within AWS
       ansible.builtin.include_role:
         name: chrony_aws
diff --git a/src/requirements.yml b/src/requirements.yml
index a9f0cb3..0b5c1e3 100644
--- a/src/requirements.yml
+++ b/src/requirements.yml
@@ -1,4 +1,6 @@
 ---
+- name: amazon_ssm_agent
+  src: https://github.com/cisagov/ansible-role-amazon-ssm-agent
 - name: amazon_efs_utils
   src: https://github.com/cisagov/ansible-role-amazon-efs-utils
 - name: automated_security_updates
diff --git a/src/version.txt b/src/version.txt
index 5b60188..0f228f2 100644
--- a/src/version.txt
+++ b/src/version.txt
@@ -1 +1 @@
-__version__ = "1.5.0"
+__version__ = "1.5.1"