diff --git a/cli/Cargo.lock b/cli/Cargo.lock
index 7596ca4..efb3d05 100644
--- a/cli/Cargo.lock
+++ b/cli/Cargo.lock
@@ -1033,6 +1033,7 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tower-service",
+ "webpki-roots",
 ]
 
 [[package]]
@@ -3722,6 +3723,15 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "webpki-roots"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52f5ee44c96cf55f1b349600768e3ece3a8f26010c05265ab73f945bb1a2eb9d"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "winapi-util"
 version = "0.1.11"
diff --git a/mcp_server_collection/Cargo.lock b/mcp_server_collection/Cargo.lock
index 669e489..b73074d 100644
--- a/mcp_server_collection/Cargo.lock
+++ b/mcp_server_collection/Cargo.lock
@@ -601,6 +601,7 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tower-service",
+ "webpki-roots",
 ]
 
 [[package]]
@@ -2063,6 +2064,15 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "webpki-roots"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52f5ee44c96cf55f1b349600768e3ece3a8f26010c05265ab73f945bb1a2eb9d"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
diff --git a/mcp_server_collection/Cargo.toml b/mcp_server_collection/Cargo.toml
index 728e007..3539319 100644
--- a/mcp_server_collection/Cargo.toml
+++ b/mcp_server_collection/Cargo.toml
@@ -21,7 +21,7 @@ libdav = { version = "0.10.5", optional = true }
 icalendar = { version = "0.17.10", optional = true, features = ["chrono-tz", "recurrence"] }
 hyper-util = { version = "0.1.20", optional = true }
 http = { version = "1.4.0", optional = true }
-hyper-rustls = { version = "0.27.7", optional = true }
+hyper-rustls = { version = "0.27.7", optional = true, features = ["webpki-roots"]}
 toml = "1.1.2"
 
 [features]
diff --git a/mcp_server_collection/src/caldav/client.rs b/mcp_server_collection/src/caldav/client.rs
index 6d83f54..d0d6655 100644
--- a/mcp_server_collection/src/caldav/client.rs
+++ b/mcp_server_collection/src/caldav/client.rs
@@ -24,8 +24,7 @@ pub(crate) fn get_caldav_client(
     password: &str,
 ) -> AuthorizedCaldavClient {
     let https_connector: HttpsConnector<HttpConnector> = HttpsConnectorBuilder::new()
-        .with_native_roots()
-        .unwrap()
+        .with_webpki_roots()
         .https_only()
         .enable_http1()
         .build();