diff --git a/package.json b/package.json
index 7d152e8..3162663 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "gatsby-transformer-remark": "^2.16.1",
     "gatsby-transformer-sharp": "^2.12.1",
     "invariant": "^2.2.4",
-    "katex": "^0.13.8",
+    "katex": "^0.13.9",
     "lodash": "^4.17.21",
     "netlify-cms-app": "^2.15.2",
     "node-sass": "^5.0.0",
diff --git a/yarn.lock b/yarn.lock
index 7632d31..d873147 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11504,10 +11504,10 @@ jwt-decode@^3.0.0:
   resolved "https://registry.yarnpkg.com/jwt-decode/-/jwt-decode-3.1.2.tgz#3fb319f3675a2df0c2895c8f5e9fa4b67b04ed59"
   integrity sha512-UfpWE/VZn0iP50d8cz9NrZLM9lSWhcJ+0Gt/nm4by88UL+J1SiKN8/5dkjMmbEzwL2CAe+67GsegCbIKtbp75A==
 
-katex@^0.13.8:
-  version "0.13.8"
-  resolved "https://registry.yarnpkg.com/katex/-/katex-0.13.8.tgz#64b7ea956941f10d490a49f256f7defb8c02a335"
-  integrity sha512-Em4VLhPveFcD1nyqfP7RPC0xsTEd7Hi8VtQQUYUqXpZqFd8FEw9iTmYaDtcBUfGUEC9rZvpvE5egcr7yOJRmzw==
+katex@^0.13.9:
+  version "0.13.9"
+  resolved "https://registry.yarnpkg.com/katex/-/katex-0.13.9.tgz#2b40665b1d287b62df08b195689d15df7689390f"
+  integrity sha512-2rz+tCHtVvQOFfq3iv2/xFOqfQmz6MWTwZ5B34kp9CX99iOT2z6YdjyiTDFm0isXR2ePRi0gF8ERwS+IpNfgNA==
   dependencies:
     commander "^6.0.0"