diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9af2578d..5bcd95ae 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [10, 12, 14]
+        node: [12, 14, 16]
     steps:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
@@ -86,6 +86,6 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 14
+          node-version: 16
       - run: cd test/tscc && npm install && npx @tscc/tscc
       - run: cd test/tscc && node out.js
diff --git a/lib/index.ts b/lib/index.ts
index c0bfac81..4758670e 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -18,7 +18,7 @@ import { YargsParser } from './yargs-parser.js'
 // version support policy. The YARGS_MIN_NODE_VERSION is used for testing only.
 const minNodeVersion = (process && process.env && process.env.YARGS_MIN_NODE_VERSION)
   ? Number(process.env.YARGS_MIN_NODE_VERSION)
-  : 10
+  : 12
 if (process && process.version) {
   const major = Number(process.version.match(/v([^.]+)/)![1])
   if (major < minNodeVersion) {
diff --git a/lib/yargs-parser.ts b/lib/yargs-parser.ts
index 1499fc60..ca7daac4 100644
--- a/lib/yargs-parser.ts
+++ b/lib/yargs-parser.ts
@@ -681,7 +681,7 @@ export class YargsParser {
             }
 
             setConfigObject(config)
-          } catch (ex) {
+          } catch (ex: any) {
             // Deno will receive a PermissionDenied error if an attempt is
             // made to load config without the --allow-read flag:
             if (ex.name === 'PermissionDenied') error = ex
@@ -759,7 +759,7 @@ export class YargsParser {
                 argv[ali] = value
               })
             } catch (err) {
-              error = err
+              error = err as Error
             }
           }
         }
diff --git a/package.json b/package.json
index 6f58f501..4d1a6314 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "!*.d.ts"
   ],
   "engines": {
-    "node": ">=10"
+    "node": ">=12"
   },
   "standardx": {
     "ignore": [
diff --git a/test/tscc/package.json b/test/tscc/package.json
index 2ac7a8ca..3deb3bfc 100644
--- a/test/tscc/package.json
+++ b/test/tscc/package.json
@@ -2,7 +2,7 @@
   "name": "optimized-test",
   "version": "0.0.0",
   "dependencies": {
-    "@tscc/tscc": "^0.6.4",
+    "@tscc/tscc": "^0.7.4",
     "@types/node": "^10.0.3"
   }
 }