diff --git a/ui/package-lock.json b/ui/package-lock.json
index c691aace4..98f9d6f5e 100644
--- a/ui/package-lock.json
+++ b/ui/package-lock.json
@@ -38,7 +38,7 @@
         "react": "19.2.4",
         "react-app-polyfill": "3.0.0",
         "react-cool-dimensions": "3.0.1",
-        "react-day-picker": "9.13.2",
+        "react-day-picker": "9.14.0",
         "react-dom": "19.2.4",
         "react-hotkeys-hook": "5.2.4",
         "react-idle-timer": "5.7.2",
@@ -4366,6 +4366,15 @@
         "@sinonjs/commons": "^3.0.1"
       }
     },
+    "node_modules/@tabby_ai/hijri-converter": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/@tabby_ai/hijri-converter/-/hijri-converter-1.0.5.tgz",
+      "integrity": "sha512-r5bClKrcIusDoo049dSL8CawnHR6mRdDwhlQuIgZRNty68q0x8k3Lf1BtPAMxRf/GgnHBnIO4ujd3+GQdLWzxQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=16.0.0"
+      }
+    },
     "node_modules/@testing-library/dom": {
       "version": "10.4.1",
       "resolved": "https://registry.npmjs.org/@testing-library/dom/-/dom-10.4.1.tgz",
@@ -10961,14 +10970,15 @@
       }
     },
     "node_modules/react-day-picker": {
-      "version": "9.13.2",
-      "resolved": "https://registry.npmjs.org/react-day-picker/-/react-day-picker-9.13.2.tgz",
-      "integrity": "sha512-IMPiXfXVIAuR5Yk58DDPBC8QKClrhdXV+Tr/alBrwrHUw0qDDYB1m5zPNuTnnPIr/gmJ4ChMxmtqPdxm8+R4Eg==",
+      "version": "9.14.0",
+      "resolved": "https://registry.npmjs.org/react-day-picker/-/react-day-picker-9.14.0.tgz",
+      "integrity": "sha512-tBaoDWjPwe0M5pGrum4H0SR6Lyk+BO9oHnp9JbKpGKW2mlraNPgP9BMfsg5pWpwrssARmeqk7YBl2oXutZTaHA==",
       "license": "MIT",
       "dependencies": {
         "@date-fns/tz": "^1.4.1",
+        "@tabby_ai/hijri-converter": "1.0.5",
         "date-fns": "^4.1.0",
-        "date-fns-jalali": "^4.1.0-0"
+        "date-fns-jalali": "4.1.0-0"
       },
       "engines": {
         "node": ">=18"
diff --git a/ui/package.json b/ui/package.json
index d91aa6937..51072d791 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -34,7 +34,7 @@
     "react": "19.2.4",
     "react-app-polyfill": "3.0.0",
     "react-cool-dimensions": "3.0.1",
-    "react-day-picker": "9.13.2",
+    "react-day-picker": "9.14.0",
     "react-dom": "19.2.4",
     "react-hotkeys-hook": "5.2.4",
     "react-idle-timer": "5.7.2",
diff --git a/ui/src/Components/SilenceModal/DateTimeSelect/__snapshots__/index.test.tsx.snap b/ui/src/Components/SilenceModal/DateTimeSelect/__snapshots__/index.test.tsx.snap
index d90080bd8..417a60799 100644
--- a/ui/src/Components/SilenceModal/DateTimeSelect/__snapshots__/index.test.tsx.snap
+++ b/ui/src/Components/SilenceModal/DateTimeSelect/__snapshots__/index.test.tsx.snap
@@ -371,6 +371,7 @@ exports[`<DateTimeSelect /> 'Ends' tab matches snapshot 1`] = `
         <div
           class="rdp-root components-date-range"
           data-mode="range"
+          lang="en-US"
         >
           <div
             class="rdp-months"
@@ -1192,6 +1193,7 @@ exports[`<DateTimeSelect /> 'Starts' tab matches snapshot 1`] = `
         <div
           class="rdp-root components-date-range"
           data-mode="range"
+          lang="en-US"
         >
           <div
             class="rdp-months"