diff --git a/addons/xterm-addon-attach/src/tsconfig.json b/addons/xterm-addon-attach/src/tsconfig.json
index 54bfc38b7..f3e409d14 100644
--- a/addons/xterm-addon-attach/src/tsconfig.json
+++ b/addons/xterm-addon-attach/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"
diff --git a/addons/xterm-addon-attach/test/tsconfig.json b/addons/xterm-addon-attach/test/tsconfig.json
index 1c772984f..fa67b1698 100644
--- a/addons/xterm-addon-attach/test/tsconfig.json
+++ b/addons/xterm-addon-attach/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],
diff --git a/addons/xterm-addon-canvas/src/tsconfig.json b/addons/xterm-addon-canvas/src/tsconfig.json
index 206d52ae8..f752dc5b6 100644
--- a/addons/xterm-addon-canvas/src/tsconfig.json
+++ b/addons/xterm-addon-canvas/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6"
diff --git a/addons/xterm-addon-fit/src/tsconfig.json b/addons/xterm-addon-fit/src/tsconfig.json
index 54bfc38b7..f3e409d14 100644
--- a/addons/xterm-addon-fit/src/tsconfig.json
+++ b/addons/xterm-addon-fit/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"
diff --git a/addons/xterm-addon-fit/test/tsconfig.json b/addons/xterm-addon-fit/test/tsconfig.json
index 1c772984f..fa67b1698 100644
--- a/addons/xterm-addon-fit/test/tsconfig.json
+++ b/addons/xterm-addon-fit/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],
diff --git a/addons/xterm-addon-search/src/tsconfig.json b/addons/xterm-addon-search/src/tsconfig.json
index 5a5e671fc..9ef27b5cf 100644
--- a/addons/xterm-addon-search/src/tsconfig.json
+++ b/addons/xterm-addon-search/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6",
diff --git a/addons/xterm-addon-search/test/tsconfig.json b/addons/xterm-addon-search/test/tsconfig.json
index df82a4573..052fac433 100644
--- a/addons/xterm-addon-search/test/tsconfig.json
+++ b/addons/xterm-addon-search/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es6",
     ],
diff --git a/addons/xterm-addon-serialize/src/tsconfig.json b/addons/xterm-addon-serialize/src/tsconfig.json
index 38ef6a7f3..ba26f22e4 100644
--- a/addons/xterm-addon-serialize/src/tsconfig.json
+++ b/addons/xterm-addon-serialize/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"
diff --git a/addons/xterm-addon-serialize/test/tsconfig.json b/addons/xterm-addon-serialize/test/tsconfig.json
index 7afbc8582..971f3e92f 100644
--- a/addons/xterm-addon-serialize/test/tsconfig.json
+++ b/addons/xterm-addon-serialize/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],
diff --git a/addons/xterm-addon-web-links/src/tsconfig.json b/addons/xterm-addon-web-links/src/tsconfig.json
index 54bfc38b7..f3e409d14 100644
--- a/addons/xterm-addon-web-links/src/tsconfig.json
+++ b/addons/xterm-addon-web-links/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es2015"
diff --git a/addons/xterm-addon-web-links/test/tsconfig.json b/addons/xterm-addon-web-links/test/tsconfig.json
index 9f4d23dff..489757641 100644
--- a/addons/xterm-addon-web-links/test/tsconfig.json
+++ b/addons/xterm-addon-web-links/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es2015"
     ],
diff --git a/addons/xterm-addon-webgl/src/tsconfig.json b/addons/xterm-addon-webgl/src/tsconfig.json
index 206d52ae8..f752dc5b6 100644
--- a/addons/xterm-addon-webgl/src/tsconfig.json
+++ b/addons/xterm-addon-webgl/src/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "dom",
       "es6"
diff --git a/addons/xterm-addon-webgl/test/tsconfig.json b/addons/xterm-addon-webgl/test/tsconfig.json
index 9c7f602f6..1ff9217ea 100644
--- a/addons/xterm-addon-webgl/test/tsconfig.json
+++ b/addons/xterm-addon-webgl/test/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2015",
     "lib": [
       "es6",
     ],
diff --git a/src/tsconfig-base.json b/src/tsconfig-base.json
index 0cd951a70..cf4454a49 100644
--- a/src/tsconfig-base.json
+++ b/src/tsconfig-base.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
-    "target": "es5",
-    "lib": [ "es5" ],
+    "module": "commonjs",
+    "target": "es2015",
     "rootDir": ".",
 
     "sourceMap": true,