diff --git a/roles/internetarchive/tasks/install.yml b/roles/internetarchive/tasks/install.yml
index 2dd6863d8..689851636 100644
--- a/roles/internetarchive/tasks/install.yml
+++ b/roles/internetarchive/tasks/install.yml
@@ -9,10 +9,11 @@
   include_role:
     name: nodejs
 
-- name: FAIL (STOP INSTALLING) IF nodejs_version is not set to 10.x, 12.x or 14.x
-  fail:
-    msg: "Internet Archive install cannot proceed, as it currently requires Node.js 10.x or 12.x or 14.x, and your nodejs_version is set to {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml and possibly also /etc/iiab/local_vars.yml"
-  when: (nodejs_version != "10.x") and (nodejs_version != "12.x") and (nodejs_version != "14.x")
+- name: Assert that 10.x <= nodejs_version ({{ nodejs_version }}) <= 16.x
+  assert:
+    that: nodejs_version is version('10.x', '>=') and nodejs_version is version('16.x', '<=')
+    fail_msg: "Internet Archive install cannot proceed, as it currently requires Node.js 10.x - 16.x, and your nodejs_version is set to {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml and possibly also /etc/iiab/local_vars.yml"
+    quiet: yes
 
 - name: "Set 'yarn_install: True' and 'yarn_enabled: True'"
   set_fact:
diff --git a/roles/nodejs/defaults/main.yml b/roles/nodejs/defaults/main.yml
index 6e710710d..312bf20fe 100644
--- a/roles/nodejs/defaults/main.yml
+++ b/roles/nodejs/defaults/main.yml
@@ -9,7 +9,7 @@
 # Node.js version used by roles/nodejs/tasks/main.yml for 3 roles:
 # nodered (Node-RED), pbx (Asterix, FreePBX) & sugarizer (Sugarizer)
 
-# nodejs_version: 14.x    # was 8.x til 2019-02-02, 10.x til 2019-12-21, 12.x til 2020-10-29
+# nodejs_version: 16.x    # was 8.x til 2019-02-02, 10.x til 2019-12-21, 12.x til 2020-10-29, 14.x til 2021-06-17
 
 # All above are set in: github.com/iiab/iiab/blob/master/vars/default_vars.yml
 # If nec, change them by editing /etc/iiab/local_vars.yml prior to installing!
diff --git a/roles/nodejs/tasks/main.yml b/roles/nodejs/tasks/main.yml
index f736525cb..e13c68934 100644
--- a/roles/nodejs/tasks/main.yml
+++ b/roles/nodejs/tasks/main.yml
@@ -1,4 +1,4 @@
-# SEE VAR nodejs_version: 14.x IN /opt/iiab/iiab/vars/default_vars.yml (FOR
+# SEE VAR nodejs_version: 16.x IN /opt/iiab/iiab/vars/default_vars.yml (FOR
 # NOW!) AND IF NEC OVERRIDE THIS IN /etc/iiab/local_vars.yml
 
 # Duplicate Node.js code unified by @jvonau.  Revised by @holta.  Used by:
diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 949b997fb..5b535277e 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -409,7 +409,7 @@ nodejs_install: False
 nodejs_enabled: False
 # Node.js version used by roles/nodejs/tasks/main.yml for 3 roles:
 # nodered (Node-RED), pbx (Asterix, FreePBX) & sugarizer (Sugarizer)
-nodejs_version: 14.x    # was 8.x til 2019-02-02, 10.x til 2019-12-21, 12.x til 2020-10-29
+nodejs_version: 16.x    # was 8.x til 2019-02-02, 10.x til 2019-12-21, 12.x til 2020-10-29, 14.x til 2021-06-17
 
 # Flow-based visual programming for wiring together IoT hardware devices etc
 nodered_install: False