diff --git a/FastGithub.HttpServer/CaCertInstallerOfLinuxDebian.cs b/FastGithub.HttpServer/CaCertInstallerOfLinuxDebian.cs
index 5a7eb62..950dd8c 100644
--- a/FastGithub.HttpServer/CaCertInstallerOfLinuxDebian.cs
+++ b/FastGithub.HttpServer/CaCertInstallerOfLinuxDebian.cs
@@ -4,7 +4,7 @@ namespace FastGithub.HttpServer
 {
     sealed class CaCertInstallerOfLinuxDebian : CaCertInstallerOfLinux
     {
-        protected override string CaCertUpdatePath => "/bin/update-ca-certificates";
+        protected override string CaCertUpdatePath => "/usr/sbin/update-ca-certificates";
 
         protected override string CaCertStorePath => "/usr/local/share/ca-certificates";
 
diff --git a/FastGithub.HttpServer/CaCertInstallerOfLinuxRedHat.cs b/FastGithub.HttpServer/CaCertInstallerOfLinuxRedHat.cs
index 897c445..d78f4d8 100644
--- a/FastGithub.HttpServer/CaCertInstallerOfLinuxRedHat.cs
+++ b/FastGithub.HttpServer/CaCertInstallerOfLinuxRedHat.cs
@@ -4,7 +4,7 @@ namespace FastGithub.HttpServer
 {
     sealed class CaCertInstallerOfLinuxRedHat : CaCertInstallerOfLinux
     {
-        protected override string CaCertUpdatePath => "/bin/update-ca-trust";
+        protected override string CaCertUpdatePath => "/usr/bin/update-ca-trust";
 
         protected override string CaCertStorePath => "/etc/pki/ca-trust/source/anchors";