diff --git a/package.json b/package.json
index 99d7b1f9..e7e177af 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   "homepage": "https://github.com/esm-bundle/moment#readme",
   "devDependencies": {
     "@rollup/plugin-commonjs": "21.0.2",
-    "chai": "4.3.4",
+    "chai": "4.3.6",
     "concurrently": "7.0.0",
     "husky": "7.0.4",
     "jest-cli": "27.5.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7819b0db..b06c956f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -2,7 +2,7 @@ lockfileVersion: 5.3
 
 specifiers:
   '@rollup/plugin-commonjs': 21.0.2
-  chai: 4.3.4
+  chai: 4.3.6
   concurrently: 7.0.0
   husky: 7.0.4
   jest-cli: 27.5.1
@@ -22,7 +22,7 @@ specifiers:
 
 devDependencies:
   '@rollup/plugin-commonjs': 21.0.2_rollup@2.69.1
-  chai: 4.3.4
+  chai: 4.3.6
   concurrently: 7.0.0
   husky: 7.0.4
   jest-cli: 27.5.1
@@ -1274,14 +1274,15 @@ packages:
     resolution: {integrity: sha512-63OrUnwJj5T1rUmoyqYTdRWBqFFxZFlyZnRRjDR8NSUQFB6A+j/uBORU/SyJ5WzDLg4SPiZH40hQCBNdZ/jmAw==}
     dev: true
 
-  /chai/4.3.4:
-    resolution: {integrity: sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==}
+  /chai/4.3.6:
+    resolution: {integrity: sha512-bbcp3YfHCUzMOvKqsztczerVgBKSsEijCySNlHHbX3VG1nskvqjz5Rfso1gGwD6w6oOV3eI60pKuMOV5MV7p3Q==}
     engines: {node: '>=4'}
     dependencies:
       assertion-error: 1.1.0
       check-error: 1.0.2
       deep-eql: 3.0.1
       get-func-name: 2.0.0
+      loupe: 2.3.4
       pathval: 1.1.1
       type-detect: 4.0.8
     dev: true
@@ -3318,6 +3319,12 @@ packages:
       - supports-color
     dev: true
 
+  /loupe/2.3.4:
+    resolution: {integrity: sha512-OvKfgCC2Ndby6aSTREl5aCCPTNIzlDfQZvZxNUrBrihDhL3xcrYegTblhmEiCrg2kKQz4XsFIaemE5BF4ybSaQ==}
+    dependencies:
+      get-func-name: 2.0.0
+    dev: true
+
   /lowercase-keys/1.0.1:
     resolution: {integrity: sha512-G2Lj61tXDnVFFOi8VZds+SoQjtQC3dgokKdDG2mTm1tx4m50NUHBOZSBwQQHyy0V12A0JTG4icfZQH+xPyh8VA==}
     engines: {node: '>=0.10.0'}