diff --git a/packages/optimise-core/package.json b/packages/optimise-core/package.json
index 80889eb21..84d20c931 100644
--- a/packages/optimise-core/package.json
+++ b/packages/optimise-core/package.json
@@ -57,7 +57,7 @@
         "form-data": "4.0.5",
         "knex": "^3.1.0",
         "moment": "2.30.1",
-        "multer": "2.0.2",
+        "multer": "2.1.1",
         "nodeify": "1.0.1",
         "papaparse": "5.5.3",
         "passport": "0.7.0",
diff --git a/yarn.lock b/yarn.lock
index 9b1073a31..246d53da2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10988,13 +10988,6 @@ minizlib@^2.0.0, minizlib@^2.1.1, minizlib@^2.1.2:
     minipass "^3.0.0"
     yallist "^4.0.0"
 
-mkdirp@^0.5.6:
-  version "0.5.6"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.6.tgz#7def03d2432dcae4ba1d611445c48396062255f6"
-  integrity sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==
-  dependencies:
-    minimist "^1.2.6"
-
 mkdirp@^1.0.3, mkdirp@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
@@ -11037,18 +11030,15 @@ ms@2.1.3, ms@^2.0.0, ms@^2.1.1, ms@^2.1.3:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
-multer@2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/multer/-/multer-2.0.2.tgz#08a8aa8255865388c387aaf041426b0c87bf58dd"
-  integrity sha512-u7f2xaZ/UG8oLXHvtF/oWTRvT44p9ecwBBqTwgJVq0+4BW1g8OW01TyMEGWBHbyMOYVHXslaut7qEQ1meATXgw==
+multer@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/multer/-/multer-2.1.1.tgz#122d819244fbdfee1efddd9147426691014385b7"
+  integrity sha512-mo+QTzKlx8R7E5ylSXxWzGoXoZbOsRMpyitcht8By2KHvMbf3tjwosZ/Mu/XYU6UuJ3VZnODIrak5ZrPiPyB6A==
   dependencies:
     append-field "^1.0.0"
     busboy "^1.6.0"
     concat-stream "^2.0.0"
-    mkdirp "^0.5.6"
-    object-assign "^4.1.1"
     type-is "^1.6.18"
-    xtend "^4.0.2"
 
 mutation-server-protocol@~0.4.0:
   version "0.4.0"
@@ -14589,11 +14579,6 @@ xmlchars@^2.2.0:
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-2.2.0.tgz#060fe1bcb7f9c76fe2a17db86a9bc3ab894210cb"
   integrity sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==
 
-xtend@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
-  integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
-
 y18n@^5.0.5:
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"