diff --git a/moto/ec2/resources/instance_types.json b/moto/ec2/resources/instance_types.json
index 6ab545ab0..38549cb52 100644
--- a/moto/ec2/resources/instance_types.json
+++ b/moto/ec2/resources/instance_types.json
@@ -1206,7 +1206,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -1299,7 +1299,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -1396,7 +1396,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -1494,7 +1494,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -1584,7 +1584,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30476,7 +30476,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30575,7 +30575,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": false,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30680,7 +30680,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30773,7 +30773,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30870,7 +30870,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -30960,7 +30960,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -51537,7 +51537,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -51642,7 +51642,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -51735,7 +51735,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -51832,7 +51832,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -51937,7 +51937,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {
@@ -52027,7 +52027,7 @@
   "AutoRecoverySupported": true,
   "BareMetal": false,
   "BurstablePerformanceSupported": false,
-  "CurrentGeneration": true,
+  "CurrentGeneration": false,
   "DedicatedHostsSupported": true,
   "EbsInfo": {
    "EbsOptimizedInfo": {