diff --git a/texttests/config.gr b/texttests/config.gr
index 9c707ffc..b3d4d4fd 100755
--- a/texttests/config.gr
+++ b/texttests/config.gr
@@ -27,12 +27,12 @@ diff_program:meld
 # note you'll also need to update the file environment.gr with your classpath if you keep your classfiles somewhere unusual
 
 # Settings for the Kotlin version using Gradle wrapped in a python script
-#executable:${TEXTTEST_HOME}/Kotlin/texttest_rig.py
-#interpreter:python
+executable:${TEXTTEST_HOME}/Kotlin/texttest_rig.py
+interpreter:python
 
 # Settings for the Ruby version
-executable:${TEXTTEST_HOME}/ruby/texttest_fixture.rb
-interpreter:ruby
+#executable:${TEXTTEST_HOME}/ruby/texttest_fixture.rb
+#interpreter:ruby
 
 # Settings for the C# Core version
 #executable:${TEXTTEST_HOME}/csharpcore/GildedRoseTests/bin/Debug/net8.0/GildedRoseTests