diff --git a/pt/19_0_Using_Lightning.md b/pt/20_0_Using_Lightning.md similarity index 100% rename from pt/19_0_Using_Lightning.md rename to pt/20_0_Using_Lightning.md diff --git a/pt/19_1_Generate_a_Payment_Request.md b/pt/20_1_Generate_a_Payment_Request.md similarity index 100% rename from pt/19_1_Generate_a_Payment_Request.md rename to pt/20_1_Generate_a_Payment_Request.md diff --git a/pt/19_2_Paying_a_Invoice.md b/pt/20_2_Paying_a_Invoice.md similarity index 100% rename from pt/19_2_Paying_a_Invoice.md rename to pt/20_2_Paying_a_Invoice.md diff --git a/pt/19_3_Closing_a_Channel.md b/pt/20_3_Closing_a_Channel.md similarity index 100% rename from pt/19_3_Closing_a_Channel.md rename to pt/20_3_Closing_a_Channel.md diff --git a/pt/19_4_Lightning_Network_Review.md b/pt/20_4_Lightning_Network_Review.md similarity index 100% rename from pt/19_4_Lightning_Network_Review.md rename to pt/20_4_Lightning_Network_Review.md