diff --git a/pt/18_0_Understanding_Your_Lightning_Setup.md b/pt/19_0_Understanding_Your_Lightning_Setup.md similarity index 100% rename from pt/18_0_Understanding_Your_Lightning_Setup.md rename to pt/19_0_Understanding_Your_Lightning_Setup.md diff --git a/pt/18_1_Verifying_Your_Lightning_Setup.md b/pt/19_1_Verifying_Your_Lightning_Setup.md similarity index 100% rename from pt/18_1_Verifying_Your_Lightning_Setup.md rename to pt/19_1_Verifying_Your_Lightning_Setup.md diff --git a/pt/18_2_Knowing_Your_lightning_Setup.md b/pt/19_2_Knowing_Your_lightning_Setup.md similarity index 100% rename from pt/18_2_Knowing_Your_lightning_Setup.md rename to pt/19_2_Knowing_Your_lightning_Setup.md diff --git a/pt/18_2__Interlude_Accessing_a_Second_Lightning_Node.md b/pt/19_2__Interlude_Accessing_a_Second_Lightning_Node.md similarity index 100% rename from pt/18_2__Interlude_Accessing_a_Second_Lightning_Node.md rename to pt/19_2__Interlude_Accessing_a_Second_Lightning_Node.md diff --git a/pt/18_3_Setting_Up_a_Channel.md b/pt/19_3_Setting_Up_a_Channel.md similarity index 100% rename from pt/18_3_Setting_Up_a_Channel.md rename to pt/19_3_Setting_Up_a_Channel.md