diff --git a/tavern/internal/ent/migrate/schema.go b/tavern/internal/ent/migrate/schema.go
index 1858e7442..971ee5268 100644
--- a/tavern/internal/ent/migrate/schema.go
+++ b/tavern/internal/ent/migrate/schema.go
@@ -229,8 +229,8 @@ var (
 		{Name: "created_at", Type: field.TypeTime},
 		{Name: "last_modified_at", Type: field.TypeTime},
 		{Name: "url", Type: field.TypeString, Unique: true},
-		{Name: "public_key", Type: field.TypeString},
-		{Name: "private_key", Type: field.TypeString},
+		{Name: "public_key", Type: field.TypeString, SchemaType: map[string]string{"mysql": "LONGTEXT"}},
+		{Name: "private_key", Type: field.TypeString, SchemaType: map[string]string{"mysql": "LONGTEXT"}},
 		{Name: "repository_owner", Type: field.TypeInt, Nullable: true},
 	}
 	// RepositoriesTable holds the schema information for the "repositories" table.
diff --git a/tavern/internal/ent/schema/repository.go b/tavern/internal/ent/schema/repository.go
index 19a9246fc..927935005 100644
--- a/tavern/internal/ent/schema/repository.go
+++ b/tavern/internal/ent/schema/repository.go
@@ -10,6 +10,7 @@ import (
 
 	"entgo.io/contrib/entgql"
 	"entgo.io/ent"
+	"entgo.io/ent/dialect"
 	"entgo.io/ent/dialect/entsql"
 	"entgo.io/ent/schema"
 	"entgo.io/ent/schema/edge"
@@ -32,6 +33,9 @@ func (Repository) Fields() []ent.Field {
 			Comment("URL of the repository"),
 		field.String("public_key").
 			NotEmpty().
+			SchemaType(map[string]string{
+				dialect.MySQL: "LONGTEXT", // Override MySQL, improve length maximum
+			}).
 			Annotations(
 				entgql.Skip(entgql.SkipMutationCreateInput | entgql.SkipMutationUpdateInput),
 			).
@@ -39,6 +43,9 @@ func (Repository) Fields() []ent.Field {
 		field.String("private_key").
 			NotEmpty().
 			Sensitive().
+			SchemaType(map[string]string{
+				dialect.MySQL: "LONGTEXT", // Override MySQL, improve length maximum
+			}).
 			Annotations(
 				entgql.Skip(entgql.SkipAll),
 			).