diff --git a/package-lock.json b/package-lock.json
index efa16d2..b952101 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
         "d3": "7.8.2"
       },
       "devDependencies": {
-        "prettier": "2.8.3"
+        "prettier": "2.8.6"
       }
     },
     "node_modules/@popperjs/core": {
@@ -447,9 +447,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "2.8.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.3.tgz",
-      "integrity": "sha512-tJ/oJ4amDihPoufT5sM0Z1SKEuKay8LfVAMlbbhnnkvt6BUserZylqo2PN+p9KeljLr0OHa2rXHU1T8reeoTrw==",
+      "version": "2.8.6",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.6.tgz",
+      "integrity": "sha512-mtuzdiBbHwPEgl7NxWlqOkithPyp4VN93V7VeHVWBF+ad3I5avc0RVDT4oImXQy9H/AqxA2NSQH8pSxHW6FYbQ==",
       "dev": true,
       "bin": {
         "prettier": "bin-prettier.js"
@@ -780,9 +780,9 @@
       "integrity": "sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg=="
     },
     "prettier": {
-      "version": "2.8.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.3.tgz",
-      "integrity": "sha512-tJ/oJ4amDihPoufT5sM0Z1SKEuKay8LfVAMlbbhnnkvt6BUserZylqo2PN+p9KeljLr0OHa2rXHU1T8reeoTrw==",
+      "version": "2.8.6",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.6.tgz",
+      "integrity": "sha512-mtuzdiBbHwPEgl7NxWlqOkithPyp4VN93V7VeHVWBF+ad3I5avc0RVDT4oImXQy9H/AqxA2NSQH8pSxHW6FYbQ==",
       "dev": true
     },
     "robust-predicates": {
diff --git a/package.json b/package.json
index 272d11b..08e2173 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
     "d3": "7.8.2"
   },
   "devDependencies": {
-    "prettier": "2.8.3"
+    "prettier": "2.8.6"
   },
   "scripts": {
     "prettier": "prettier --check README.md .github tuna/web/static/icicle.js tuna/web/static/tuna.css"