diff --git a/matrix-meetings-bot/package.json b/matrix-meetings-bot/package.json
index 283d6e9e..10ff24e4 100644
--- a/matrix-meetings-bot/package.json
+++ b/matrix-meetings-bot/package.json
@@ -46,7 +46,7 @@
     "i18next": "^23.7.16",
     "i18next-fs-backend": "^2.3.1",
     "i18next-http-middleware": "^3.6.0",
-    "joi": "^17.13.1",
+    "joi": "^17.13.3",
     "lodash": "^4.17.20",
     "luxon": "^3.3.0",
     "matrix-bot-sdk": "npm:@nordeck/matrix-bot-sdk@0.7.1-crypto.beta.12",
diff --git a/matrix-meetings-widget/package.json b/matrix-meetings-widget/package.json
index 69d0ca00..3daa398e 100644
--- a/matrix-meetings-widget/package.json
+++ b/matrix-meetings-widget/package.json
@@ -23,7 +23,7 @@
     "i18next": "^23.7.16",
     "i18next-chained-backend": "^4.6.2",
     "i18next-http-backend": "^2.5.2",
-    "joi": "^17.13.1",
+    "joi": "^17.13.3",
     "lodash": "^4.17.20",
     "luxon": "^3.3.0",
     "@nordeck/matrix-meetings-calendar": "1.0.0",
diff --git a/packages/calendar/package.json b/packages/calendar/package.json
index bdb823b9..b0fe4efc 100644
--- a/packages/calendar/package.json
+++ b/packages/calendar/package.json
@@ -20,7 +20,7 @@
   },
   "dependencies": {
     "i18next": "^23.7.16",
-    "joi": "^17.13.1",
+    "joi": "^17.13.3",
     "lodash": "^4.17.20",
     "luxon": "^3.3.0",
     "rrule": "^2.8.1"
diff --git a/yarn.lock b/yarn.lock
index 99b3764e..d6ddefc6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8656,10 +8656,10 @@ jest@^27.4.3:
     import-local "^3.0.2"
     jest-cli "^27.5.1"
 
-joi@^17.13.1:
-  version "17.13.1"
-  resolved "https://registry.yarnpkg.com/joi/-/joi-17.13.1.tgz#9c7b53dc3b44dd9ae200255cc3b398874918a6ca"
-  integrity sha512-vaBlIKCyo4FCUtCm7Eu4QZd/q02bWcxfUO6YSXAZOWF6gzcLBeba8kwotUdYJjDLW8Cz8RywsSOqiNJZW0mNvg==
+joi@^17.13.3:
+  version "17.13.3"
+  resolved "https://registry.yarnpkg.com/joi/-/joi-17.13.3.tgz#0f5cc1169c999b30d344366d384b12d92558bcec"
+  integrity sha512-otDA4ldcIx+ZXsKHWmp0YizCweVRZG96J10b0FevjfuncLO1oX59THoAmHkNubYJ+9gWsYsp5k8v4ib6oDv1fA==
   dependencies:
     "@hapi/hoek" "^9.3.0"
     "@hapi/topo" "^5.1.0"