diff --git a/package.json b/package.json
index 35d8e85..5a06a31 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "install": "^0.13.0",
     "jquery": "^3.5.0",
     "popper.js": "^1.16.0",
-    "prismjs": "^1.18.0",
+    "prismjs": "^1.21.0",
     "prop-types": "^15.7.2",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
diff --git a/yarn.lock b/yarn.lock
index 18e7a62..4bfa12a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13529,10 +13529,10 @@ pretty-hrtime@^1.0.0:
   resolved "https://registry.yarnpkg.com/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz#b7e3ea42435a4c9b2759d99e0f201eb195802ee1"
   integrity sha1-t+PqQkNaTJsnWdmeDyAesZWALuE=
 
-prismjs@^1.18.0:
-  version "1.18.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.18.0.tgz#8f04dd47fa232cbd27d1ca969107580ff43f06e4"
-  integrity sha512-N0r3i/Cto516V8+GKKamhsPVZSFcO0TMUBtIDW6uq6BVqoC3FNtZVZ+cmH16N2XtGQlgRN+sFUTjOdCsEP51qw==
+prismjs@^1.21.0:
+  version "1.21.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.21.0.tgz#36c086ec36b45319ec4218ee164c110f9fc015a3"
+  integrity sha512-uGdSIu1nk3kej2iZsLyDoJ7e9bnPzIgY0naW/HdknGj61zScaprVEVGHrPoXqI+M9sP0NDnTK2jpkvmldpuqDw==
   optionalDependencies:
     clipboard "^2.0.0"