diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..63d1618
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1 @@
+custom: paypal.me/miasteinkirch
diff --git a/Gemfile.lock b/Gemfile.lock
index 90b2ed4..90308b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,8 +17,10 @@ GEM
     builder (3.0.0)
     colorize (0.5.8)
     columnize (0.3.6)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.1.3)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.6.4)
     linecache19 (0.5.12)
       ruby_core_source (>= 0.1.4)