diff --git a/apps/checker/app/matchers/LanguageToolMatcher.scala b/apps/checker/app/matchers/LanguageToolMatcher.scala
index 607956a7a..6b69b27a4 100644
--- a/apps/checker/app/matchers/LanguageToolMatcher.scala
+++ b/apps/checker/app/matchers/LanguageToolMatcher.scala
@@ -1,8 +1,10 @@
 package matchers
 
 import com.gu.typerighter.model.{Category, LTRule, LTRuleXML, RuleMatch}
+
 import java.io.File
 import org.languagetool._
+import org.languagetool.language.{BritishEnglish}
 import org.languagetool.rules.spelling.morfologik.suggestions_ordering.SuggestionsOrdererConfig
 import org.languagetool.rules.{Rule => LanguageToolRule}
 import play.api.Logging
@@ -13,7 +15,8 @@ import scala.concurrent.{ExecutionContext, Future}
 import org.languagetool.rules.patterns.PatternRuleLoader
 import org.languagetool.rules.patterns.AbstractPatternRule
 import utils.{Matcher, MatcherCompanion}
-import scala.xml.{XML, Attribute, Null, Text}
+
+import scala.xml.{Attribute, Null, Text, XML}
 import scala.util.Try
 import scala.util.Success
 import scala.util.Failure
@@ -111,7 +114,7 @@ class LanguageToolFactory(
         val loader = new PatternRuleLoader()
         getXMLStreamFromLTRules(rules) flatMap { xmlStream =>
           {
-            Try(loader.getRules(xmlStream, "languagetool-generated-xml").asScala.toList)
+            Try(loader.getRules(xmlStream, "languagetool-generated-xml", new BritishEnglish()).asScala.toList)
           }
         }
       }
diff --git a/build.sbt b/build.sbt
index 271e9e7c8..41edd9b2e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -24,7 +24,7 @@ ThisBuild / scalacOptions := Seq(
 // See https://support.snyk.io/hc/en-us/articles/9590215676189-Deeply-nested-Scala-projects-have-dependencies-truncated
 ThisBuild / asciiGraphWidth := 999999999
 
-val languageToolVersion = "6.1"
+val languageToolVersion = "6.3"
 val awsSdkVersion = "1.12.749"
 val capiModelsVersion = "17.5.1"
 val capiClientVersion = "19.2.1"