diff --git a/README.md b/README.md
index b330c9e..291636a 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ A [shareable config preset for Renovate](https://docs.renovatebot.com/config-pre
 
 ### ecspressoVersion.json5 (opt-in)
 
-Updates the [ecspresso](https://github.com/kayac/ecspresso) version defined in the `.ecspresso-version` file using `regexManagers`.
+Updates the [ecspresso](https://github.com/kayac/ecspresso) version defined in the `.ecspresso-version` file using `customManagers`.
 
 ```json
 {
@@ -124,7 +124,7 @@ or extend the [Schedule Presets](https://docs.renovatebot.com/presets-schedule/)
 
 ### xcodegenSwiftPackages.json5 (opt-in)
 
-Updates Swift packages in XcodeGen's `project.yml` using `regexManagers`.
+Updates Swift packages in XcodeGen's `project.yml` using `customManagers`.
 
 - https://github.com/yonaskolb/XcodeGen/blob/master/Docs/ProjectSpec.md#swift-package
 
diff --git a/ecspressoVersion.json5 b/ecspressoVersion.json5
index 98e772b..e7f6502 100644
--- a/ecspressoVersion.json5
+++ b/ecspressoVersion.json5
@@ -1,5 +1,5 @@
 {
-  regexManagers: [
+  customManagers: [
     {
       fileMatch: ["^\\.ecspresso-version$"],
       matchStrings: ["(?<currentValue>\\d+\\.\\d+\\.\\d+)"],
diff --git a/limitDockerNodeUpdatesToLTS.json5 b/limitDockerNodeUpdatesToLTS.json5
index 163ff9a..b9ee38f 100644
--- a/limitDockerNodeUpdatesToLTS.json5
+++ b/limitDockerNodeUpdatesToLTS.json5
@@ -1,6 +1,6 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "regexManagers": [
+  "customManagers": [
     {
       // match dockerfiles
       // https://github.com/renovatebot/renovate/blob/ae05eae500ad26ad93b0df7b00c26b85cc3be2ce/lib/modules/manager/dockerfile/index.ts#L10
diff --git a/xcodegenSwiftPackages.json5 b/xcodegenSwiftPackages.json5
index 8932d02..f3d0d46 100644
--- a/xcodegenSwiftPackages.json5
+++ b/xcodegenSwiftPackages.json5
@@ -1,5 +1,5 @@
 {
-  regexManagers: [
+  customManagers: [
     // https://speakerdeck.com/ikesyo/renovateniyoruiosraiburarifalsezi-dong-geng-xin?slide=19
     {
       fileMatch: ["(^|/)project\\.ya?ml$", "(^|/)[Xx]code[Gg]en/.+\\.ya?ml$"],