diff --git a/package.json b/package.json
index 28a6e2c..21cd229 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "babel-plugin-transform-remove-console": "6.9.4",
     "babel-plugin-unassert": "3.2.0",
     "babel-preset-power-assert": "3.0.0",
-    "c8": "7.12.0",
+    "c8": "7.13.0",
     "esdoc": "1.1.0",
     "esdoc-inject-script-plugin": "1.0.0",
     "esdoc-inject-style-plugin": "1.0.0",
diff --git a/yarn.lock b/yarn.lock
index c8bc9a6..a541730 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3531,10 +3531,10 @@ builtins@^5.0.1:
   dependencies:
     semver "^7.0.0"
 
-c8@7.12.0:
-  version "7.12.0"
-  resolved "https://registry.yarnpkg.com/c8/-/c8-7.12.0.tgz#402db1c1af4af5249153535d1c84ad70c5c96b14"
-  integrity sha512-CtgQrHOkyxr5koX1wEUmN/5cfDa2ckbHRA4Gy5LAL0zaCFtVWJS5++n+w4/sr2GWGerBxgTjpKeDclk/Qk6W/A==
+c8@7.13.0:
+  version "7.13.0"
+  resolved "https://registry.yarnpkg.com/c8/-/c8-7.13.0.tgz#a2a70a851278709df5a9247d62d7f3d4bcb5f2e4"
+  integrity sha512-/NL4hQTv1gBL6J6ei80zu3IiTrmePDKXKXOTLpHvcIWZTVYQlDhVWjjWvkhICylE8EwwnMVzDZugCvdx0/DIIA==
   dependencies:
     "@bcoe/v8-coverage" "^0.2.3"
     "@istanbuljs/schema" "^0.1.3"