diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8f6d49..f590f55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,12 +4,13 @@
 
 - **Upgrade**: Upgraded dependency `commander` to `5.x`
 - **Upgrade**: Upgraded devDependencies `ts-standard`, `sinon`
+- **Feature**: support both `$var` and `${var}` when expanding vars
 
 ## 10.1.0
 
 - **Feature**: Added support for expanding vars using the `-x` flag.
 Note: only supports `$var` syntax
-- **Feature**: Added support for `--silent` flag that ignores env-cmd errors and missing files and 
+- **Feature**: Added support for `--silent` flag that ignores env-cmd errors and missing files and
 only terminates on caught signals
 - **Feature**: Added a new `--verbose` flag that prints additional debugging info to `console.info`
 - **Upgrade**: Upgraded dependency `commander` to `4.x`
diff --git a/package.json b/package.json
index 27420e7..6b9c8aa 100644
--- a/package.json
+++ b/package.json
@@ -38,11 +38,12 @@
   ],
   "author": "Todd Bluhm",
   "contributors": [
+    "Anton Versal <ant.ver@gmail.com>",
     "Eric Lanehart <eric@pushred.co>",
     "Jon Scheiding <jonscheiding@gmail.com>",
-    "serapath (Alexander Praetorius) <dev@serapath.de>",
     "Kyle Hensel <me@kyle.kiwi>",
-    "Anton Versal <ant.ver@gmail.com>"
+    "Nicholas Krul <nicholas.krul@gmail.com>",
+    "serapath (Alexander Praetorius) <dev@serapath.de>"
   ],
   "license": "MIT",
   "bugs": {
diff --git a/src/expand-envs.ts b/src/expand-envs.ts
index 60b66cf..565665b 100644
--- a/src/expand-envs.ts
+++ b/src/expand-envs.ts
@@ -1,13 +1,12 @@
 import type { Environment } from './types.ts'
 
 /**
- * expandEnvs Replaces $var in args and command with environment variables
- * if the environment variable doesn't exist, it leaves it as is.
+ * expandEnvs Replaces $var and ${var} in args and command with environment variables
+ * the environment variable doesn't exist, it leaves it as is.
 */
-export function expandEnvs(str: string, envs: Environment): string {
-  return str.replace(/(?<!\\)\$[a-zA-Z0-9_]+/g, (varName) => {
-    const varValue = envs[varName.slice(1)]
-    // const test = 42;
+export function expandEnvs (str: string, envs: Environment): string {
+  return str.replace(/(?<!\\)\$\{?[a-zA-Z0-9_]+\}?/g, (varName) => {
+    const varValue = envs[varName.startsWith('${') ? varName.slice(2, varName.length - 1) : varName.slice(1)]
     return varValue ?? varName
   })
 }
diff --git a/test/expand-envs.spec.ts b/test/expand-envs.spec.ts
index fb9c605..fadde2b 100644
--- a/test/expand-envs.spec.ts
+++ b/test/expand-envs.spec.ts
@@ -11,8 +11,8 @@ describe('expandEnvs', (): void => {
     THANKSFORALLTHEFISH: 42,
     BRINGATOWEL: true,
   }
-  const args = ['notvar', '$dollar', '\\$notvar', '-4', '$PING', '$IP1', '\\$IP1', '$NONEXIST']
-  const argsExpanded = ['notvar', 'money', '\\$notvar', '-4', 'PONG', '127.0.0.1', '\\$IP1', '$NONEXIST']
+  const args = ['notvar', '$dollar', '\\$notvar', '-4', '$PING', '$IP1', '\\$IP1', '$NONEXIST', '${PING}', '${NONEXIST}'] /* eslint-disable-line */
+  const argsExpanded = ['notvar', 'money', '\\$notvar', '-4', 'PONG', '127.0.0.1', '\\$IP1', '$NONEXIST', 'PONG', '${NONEXIST}'] /* eslint-disable-line */
 
   it('should replace environment variables in args', (): void => {
     const res = args.map(arg => expandEnvs(arg, envs))