diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 0950fdcb2..87edafd0f 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -22,4 +22,4 @@ jobs:
           version: latest
           args: release --rm-dist
         env:
-          GITHUB_TOKEN: ${{secrets.dagu_GITHUB_TOKEN}}
\ No newline at end of file
+          GITHUB_TOKEN: ${{secrets.DAGU_GITHUB_TOKEN}}
\ No newline at end of file
diff --git a/README.md b/README.md
index 7bea960fe..929e18541 100644
--- a/README.md
+++ b/README.md
@@ -110,8 +110,8 @@ Download the binary from [Releases page](https://github.com/dagu/dagu/releases)
 ## Configuration
 
 ### Environment variables
-- `dagu__DATA` - path to directory for internal use by dagu (default : `~/.dagu/data`)
-- `dagu__LOGS` - path to directory for logging (default : `~/.dagu/logs`)
+- `DAGU__DATA` - path to directory for internal use by dagu (default : `~/.dagu/data`)
+- `DAGU__LOGS` - path to directory for logging (default : `~/.dagu/logs`)
 
 ### Web UI configuration
 
diff --git a/internal/settings/settings.go b/internal/settings/settings.go
index d85c48f4f..c60cdb142 100644
--- a/internal/settings/settings.go
+++ b/internal/settings/settings.go
@@ -13,8 +13,8 @@ var ErrConfigNotFound = fmt.Errorf("config not found")
 var cache map[string]string = nil
 
 const (
-	CONFIG__DATA_DIR = "dagu__DATA"
-	CONFIG__LOGS_DIR = "dagu__LOGS"
+	CONFIG__DATA_DIR = "DAGU__DATA"
+	CONFIG__LOGS_DIR = "DAGU__LOGS"
 )
 
 func MustGet(name string) string {