diff --git a/.github/workflows/test-unit.yml b/.github/workflows/test-unit.yml
index 51fa8c2..f23b7d4 100644
--- a/.github/workflows/test-unit.yml
+++ b/.github/workflows/test-unit.yml
@@ -35,7 +35,7 @@ jobs:
       working-directory: test
 
     - name: Archive code coverage results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: code-coverage-report
         path: test/coverage.out
@@ -52,12 +52,12 @@ jobs:
           fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
 
       - name: Download code coverage results
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: code-coverage-report
 
       - name: Analyze with SonarCloud
-        uses: sonarsource/sonarcloud-github-action@master
+        uses: sonarsource/sonarqube-scan-action@master
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
diff --git a/config/default.go b/config/default.go
index 5da5f4e..b409ad1 100644
--- a/config/default.go
+++ b/config/default.go
@@ -35,6 +35,7 @@ Host = "cdk-data-availability-db"
 Port = "5432"
 EnableLog = false
 MaxConns = 200
+SSLMode = "disable"
 
 [RPC]
 Host = "0.0.0.0"
diff --git a/db/config.go b/db/config.go
index 3eddab7..698e591 100644
--- a/db/config.go
+++ b/db/config.go
@@ -31,12 +31,15 @@ type Config struct {
 
 	// MaxConns is the maximum number of connections in the pool.
 	MaxConns int `mapstructure:"MaxConns"`
+
+	// SSLMode: "require", "verify-full", "verify-ca", and "disable"
+	SSLMode string `mapstructure:"SSLMode"`
 }
 
 // InitContext initializes DB connection by the given config
 func InitContext(ctx context.Context, cfg Config) (*sqlx.DB, error) {
-	psqlInfo := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable",
-		cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.Name)
+	psqlInfo := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=%s",
+		cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.Name, cfg.SSLMode)
 
 	conn, err := sqlx.ConnectContext(ctx, "postgres", psqlInfo)
 	if err != nil {