diff --git a/package.json b/package.json
index 54832fe..d0352d9 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@fullcalendar/daygrid": "^6.1.21",
     "@fullcalendar/list": "^6.1.21",
     "@fullcalendar/luxon3": "^6.1.21",
-    "@fullcalendar/react": "^6.1.21",
+    "@fullcalendar/react": "^7.0.2",
     "@fullcalendar/timegrid": "^6.1.21",
     "@slack/web-api": "^8.0.0",
     "@vercel/kv": "^3.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2b83549..00169b6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -32,8 +32,8 @@ importers:
         specifier: ^6.1.21
         version: 6.1.21(@fullcalendar/core@6.1.21)(luxon@3.7.2)
       '@fullcalendar/react':
-        specifier: ^6.1.21
-        version: 6.1.21(@fullcalendar/core@6.1.21)(react-dom@19.2.8(react@19.2.8))(react@19.2.8)
+        specifier: ^7.0.2
+        version: 7.0.2(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(temporal-polyfill@1.0.3)
       '@fullcalendar/timegrid':
         specifier: ^6.1.21
         version: 6.1.21(@fullcalendar/core@6.1.21)
@@ -215,9 +215,20 @@ packages:
   '@floating-ui/utils@0.2.12':
     resolution: {integrity: sha512-HpCo8tmWzLVad5s2d19EhAz5zqrrQ6s69qd6moPMQvkOuSwDT1YgRfWSVuc4ennqrgv3OHppiOGMQ7oC13yIww==}
 
+  '@full-ui/headless-calendar@7.0.2':
+    resolution: {integrity: sha512-i6UlTNjBVuiBca5Sq6OoLxFqK6eaQ/v1XOLObjRkzXLuSuNn+qs9/dUvlzrbeesn7QbRH7+u7lyvlQyq8WvmGA==}
+    peerDependencies:
+      temporal-polyfill: ^1.0.1
+
   '@fullcalendar/core@6.1.21':
     resolution: {integrity: sha512-t3u/+sqh3Iq7TWtUnVLcGDUE6OWZh0UD3c04bI/l7lSLAgAKr3kngBmhHiQD1QXpwC8ZN5iNqG7a7gOVixhSKQ==}
 
+  '@fullcalendar/core@7.0.2':
+    resolution: {integrity: sha512-EkhE1wkPttp5kKNmUNLsMwl8nUuQmLdj30SPKagOEWMJUE4AHETAu/F/SbYoRq+nksm2GWPe9cQs1kbQP2H9pA==}
+    peerDependencies:
+      '@full-ui/headless-calendar': 7.0.2
+      temporal-polyfill: ^1.0.1
+
   '@fullcalendar/daygrid@6.1.21':
     resolution: {integrity: sha512-QYb1y40RGYLlOxKpYWg8O+7njEnKnFG8Tt7qjnubJGR35s1phQg67E+81y2TyAbbm59p2JFOCXGDk9t6KDujIA==}
     peerDependencies:
@@ -234,12 +245,12 @@ packages:
       '@fullcalendar/core': ~6.1.21
       luxon: ^3.0.0
 
-  '@fullcalendar/react@6.1.21':
-    resolution: {integrity: sha512-TLpmGUd5k/PMdCh8XbeFC9PW9wuGvMms1oCxWgXyjK3EFPXAAd0PLfcvwKdyxoAS5eK1E4RJFkjMHvsYHpimcg==}
+  '@fullcalendar/react@7.0.2':
+    resolution: {integrity: sha512-+etsJS6UsS1asxpEJt2h/vH/OCC/lqb8OCO/Xv7Mwb7GeJnR25iwBDEZmMKKmxNjJ2o8eU3uNGl/e7551eAt3A==}
     peerDependencies:
-      '@fullcalendar/core': ~6.1.21
-      react: ^16.7.0 || ^17 || ^18 || ^19
-      react-dom: ^16.7.0 || ^17 || ^18 || ^19
+      react: ^17 || ^18 || ^19
+      react-dom: ^17 || ^18 || ^19
+      temporal-polyfill: ^1.0.1
 
   '@fullcalendar/timegrid@6.1.21':
     resolution: {integrity: sha512-2DnShx/jallGmb8QCkr6pAOu/zuPhJrP7+uTrAtSnbqsX7GF3lTxqSeNGkTQwsgF5g/ia8udhQ+JNYaE+TN1cQ==}
@@ -1366,6 +1377,15 @@ packages:
     resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
     engines: {node: '>= 0.4'}
 
+  temporal-polyfill@1.0.3:
+    resolution: {integrity: sha512-U8vuzZBc+dfMIfl8wXWcedfI7AJCxJjjVBIRpJUvIz5+UAp555UJDHguKsfZqHWaHRSdVUThm7mqqIWhN/xPBQ==}
+
+  temporal-spec@1.0.1:
+    resolution: {integrity: sha512-wxVoanmDeavXie1vu2JaQ3WIc3JZnWAOYFBsJyATaVsXsycKYUflGsyBmrRSnoCpZJpwPyr38VpgSUlQ8CbFxg==}
+
+  temporal-utils@1.0.1:
+    resolution: {integrity: sha512-HAixuesxFQIUaQk3ptX2jhfO/FsOkgVkDDMawvp6n/fkB1q6BKfs3lURw9I+pK/2e2e/q/vrLrxmeqauBoyGMQ==}
+
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
@@ -1734,10 +1754,19 @@ snapshots:
 
   '@floating-ui/utils@0.2.12': {}
 
+  '@full-ui/headless-calendar@7.0.2(temporal-polyfill@1.0.3)':
+    dependencies:
+      temporal-polyfill: 1.0.3
+
   '@fullcalendar/core@6.1.21':
     dependencies:
       preact: 10.12.1
 
+  '@fullcalendar/core@7.0.2(@full-ui/headless-calendar@7.0.2(temporal-polyfill@1.0.3))(temporal-polyfill@1.0.3)':
+    dependencies:
+      '@full-ui/headless-calendar': 7.0.2(temporal-polyfill@1.0.3)
+      temporal-polyfill: 1.0.3
+
   '@fullcalendar/daygrid@6.1.21(@fullcalendar/core@6.1.21)':
     dependencies:
       '@fullcalendar/core': 6.1.21
@@ -1751,11 +1780,13 @@ snapshots:
       '@fullcalendar/core': 6.1.21
       luxon: 3.7.2
 
-  '@fullcalendar/react@6.1.21(@fullcalendar/core@6.1.21)(react-dom@19.2.8(react@19.2.8))(react@19.2.8)':
+  '@fullcalendar/react@7.0.2(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(temporal-polyfill@1.0.3)':
     dependencies:
-      '@fullcalendar/core': 6.1.21
+      '@full-ui/headless-calendar': 7.0.2(temporal-polyfill@1.0.3)
+      '@fullcalendar/core': 7.0.2(@full-ui/headless-calendar@7.0.2(temporal-polyfill@1.0.3))(temporal-polyfill@1.0.3)
       react: 19.2.8
       react-dom: 19.2.8(react@19.2.8)
+      temporal-polyfill: 1.0.3
 
   '@fullcalendar/timegrid@6.1.21(@fullcalendar/core@6.1.21)':
     dependencies:
@@ -3023,6 +3054,15 @@ snapshots:
 
   supports-preserve-symlinks-flag@1.0.0: {}
 
+  temporal-polyfill@1.0.3:
+    dependencies:
+      temporal-spec: 1.0.1
+      temporal-utils: 1.0.1
+
+  temporal-spec@1.0.1: {}
+
+  temporal-utils@1.0.1: {}
+
   tinybench@2.9.0: {}
 
   tinyexec@1.2.4: {}