diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index f9b580a5a8..e4fb99e158 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -61,7 +61,7 @@
         "timeago.js": "4.0.2",
         "use-debounce": "9.0.4",
         "worker-loader": "3.0.8",
-        "yup": "^0.32.11"
+        "yup": "^1.2.0"
       },
       "devDependencies": {
         "@jest/globals": "29.5.0",
@@ -16169,11 +16169,6 @@
         "thenify-all": "^1.0.0"
       }
     },
-    "node_modules/nanoclone": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/nanoclone/-/nanoclone-0.2.1.tgz",
-      "integrity": "sha512-wynEP02LmIbLpcYw8uBKpcfF6dmg2vcpKqxeH5UcoKEYdExslsdUA4ugFauuaeYdTB76ez6gJW8XAZ6CgkXYxA=="
-    },
     "node_modules/nanoid": {
       "version": "3.3.6",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.6.tgz",
@@ -23135,6 +23130,11 @@
       "integrity": "sha512-IjZc9KIotudix8bMaBW6QvMuq64BrJWFs1+4V0lXwWGQZwH+LnX87doAYhem4caOEusRP9/g6jVDQmZ8XOk1nw==",
       "dev": true
     },
+    "node_modules/tiny-case": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-case/-/tiny-case-1.0.3.tgz",
+      "integrity": "sha512-Eet/eeMhkO6TX8mnUteS9zgPbUMQa4I6Kkp5ORiBD5476/m+PIRiumP5tmh5ioJpH7k51Kehawy2UDfsnxxY8Q=="
+    },
     "node_modules/tiny-warning": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/tiny-warning/-/tiny-warning-1.0.3.tgz",
@@ -24924,20 +24924,25 @@
       }
     },
     "node_modules/yup": {
-      "version": "0.32.11",
-      "resolved": "https://registry.npmjs.org/yup/-/yup-0.32.11.tgz",
-      "integrity": "sha512-Z2Fe1bn+eLstG8DRR6FTavGD+MeAwyfmouhHsIUgaADz8jvFKbO/fXc2trJKZg+5EBjh4gGm3iU/t3onKlXHIg==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/yup/-/yup-1.2.0.tgz",
+      "integrity": "sha512-PPqYKSAXjpRCgLgLKVGPA33v5c/WgEx3wi6NFjIiegz90zSwyMpvTFp/uGcVnnbx6to28pgnzp/q8ih3QRjLMQ==",
       "dependencies": {
-        "@babel/runtime": "^7.15.4",
-        "@types/lodash": "^4.14.175",
-        "lodash": "^4.17.21",
-        "lodash-es": "^4.17.21",
-        "nanoclone": "^0.2.1",
-        "property-expr": "^2.0.4",
-        "toposort": "^2.0.2"
-      },
+        "property-expr": "^2.0.5",
+        "tiny-case": "^1.0.3",
+        "toposort": "^2.0.2",
+        "type-fest": "^2.19.0"
+      }
+    },
+    "node_modules/yup/node_modules/type-fest": {
+      "version": "2.19.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-2.19.0.tgz",
+      "integrity": "sha512-RAH822pAdBgcNMAfWnCBU3CFZcfZ/i1eZjwFU/dsLKumyuuP3niueg2UAukXYF0E2AAoc82ZSSf9J0WQBinzHA==",
       "engines": {
-        "node": ">=10"
+        "node": ">=12.20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     }
   }
diff --git a/frontend/package.json b/frontend/package.json
index 81b7c7e67e..d1e40437a0 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -81,7 +81,7 @@
     "timeago.js": "4.0.2",
     "use-debounce": "9.0.4",
     "worker-loader": "3.0.8",
-    "yup": "^0.32.11"
+    "yup": "^1.2.0"
   },
   "devDependencies": {
     "@jest/globals": "29.5.0",
diff --git a/frontend/src/features/SideWindow/MissionForm/ActionForm/schemas.ts b/frontend/src/features/SideWindow/MissionForm/ActionForm/schemas.ts
index 376856e500..406b579877 100644
--- a/frontend/src/features/SideWindow/MissionForm/ActionForm/schemas.ts
+++ b/frontend/src/features/SideWindow/MissionForm/ActionForm/schemas.ts
@@ -138,6 +138,6 @@ export const InfractionFormLiveSchema = object({
     .required('Le type d’infraction est un champ obligatoire.'),
   natinf: number().when('infractionType', {
     is: (infractionType?: MissionAction.InfractionType) => infractionType !== MissionAction.InfractionType.PENDING,
-    then: number().required('Le NATINF est un champ obligatoire.')
+    then: schema => schema.required('Le NATINF est un champ obligatoire.')
   })
 })