diff --git a/go.mod b/go.mod
index b42f0256f497c5291f2fe1c4b2513997d4461b30..508ab4d27ab21499722ac43cdbb8e356fa01bff8 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ go 1.24.2
 
 require (
 	github.com/BurntSushi/toml v1.5.0
-	github.com/go-playground/validator/v10 v10.26.0
+	github.com/go-playground/validator/v10 v10.27.0
 	github.com/ijt/go-anytime v1.9.2
 	github.com/mark3labs/mcp-go v0.23.1
 )
diff --git a/go.sum b/go.sum
index 9cf62f3ac11483f8dc62b5e592df1e36ab07531a..5a68f8d02818c3b7cfd3ae6070e628336c09ef09 100644
--- a/go.sum
+++ b/go.sum
@@ -14,6 +14,8 @@ github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJn
 github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
 github.com/go-playground/validator/v10 v10.26.0 h1:SP05Nqhjcvz81uJaRfEV0YBSSSGMc/iMaVtFbr3Sw2k=
 github.com/go-playground/validator/v10 v10.26.0/go.mod h1:I5QpIEbmr8On7W0TktmJAumgzX4CA1XNl4ZmDuVHKKo=
+github.com/go-playground/validator/v10 v10.27.0 h1:w8+XrWVMhGkxOaaowyKH35gFydVHOvC0/uWoy2Fzwn4=
+github.com/go-playground/validator/v10 v10.27.0/go.mod h1:I5QpIEbmr8On7W0TktmJAumgzX4CA1XNl4ZmDuVHKKo=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=