diff --git a/.ruby-version b/.ruby-version
index 338a5b5..619b537 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.6.6
+3.3.3
diff --git a/Dockerfile b/Dockerfile
index 87fae97..81149f5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.6-alpine
+FROM ruby:3.3-alpine
 
 RUN apk add --update git
 LABEL "com.github.actions.name"="Stations Human Diff"
diff --git a/lib/shd/diff_analyzer.rb b/lib/shd/diff_analyzer.rb
index b5dcab1..7f1f17c 100644
--- a/lib/shd/diff_analyzer.rb
+++ b/lib/shd/diff_analyzer.rb
@@ -96,7 +96,7 @@ def fetch_stations(params)
       Logger.info "Fetching and parsing #{url} ..."
 
       raw = URI.parse(url).open.read
-      CSV.parse(raw, CSV_PARAMETERS)
+      CSV.parse(raw, **CSV_PARAMETERS)
     end
 
     def group_by_id(stations, all_ids)