diff --git a/Cargo.toml b/Cargo.toml
index 807470f..b802ec7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ tracing-subscriber = "^0.3.17"
 tracing = "^0.1.37"
 himmelblau_unix_common = { path = "src/common" }
 kanidm_unix_common = { path = "src/glue" }
-libhimmelblau = { version = "0.3.8" }
+libhimmelblau = { version = "0.3.9" }
 clap = { version = "^4.5", features = ["derive", "env"] }
 clap_complete = "^4.4.1"
 reqwest = { version = "^0.12.2", features = ["json"] }
diff --git a/man/man5/himmelblau.conf.5 b/man/man5/himmelblau.conf.5
index 9215a1e..c2e8c6e 100644
--- a/man/man5/himmelblau.conf.5
+++ b/man/man5/himmelblau.conf.5
@@ -260,7 +260,7 @@ connection_timeout = 5
 .TP
 .B cache_timeout
 .RE
-The timeout for caching authentication data. Default is 15 seconds.
+The timeout for caching authentication data. Default is 300 seconds (5 minutes).
 
 .EXAMPLES
 cache_timeout = 10
diff --git a/platform/debian/himmelblau.conf.example b/platform/debian/himmelblau.conf.example
index 58e97eb..48f5176 100644
--- a/platform/debian/himmelblau.conf.example
+++ b/platform/debian/himmelblau.conf.example
@@ -93,7 +93,7 @@ home_alias = CN
 # shell = /bin/bash ; default shell for the user
 # idmap_range = 5000000-5999999
 # connection_timeout = 2
-# cache_timeout = 15
+# cache_timeout = 300
 use_etc_skel = true
 # selinux = true
 
diff --git a/src/common/src/config.rs b/src/common/src/config.rs
index 0eb9674..3a3e21f 100644
--- a/src/common/src/config.rs
+++ b/src/common/src/config.rs
@@ -455,6 +455,10 @@ impl HimmelblauConfig {
         self.config.get(domain, "tenant_id")
     }
 
+    pub fn get_graph_url(&self, domain: &str) -> Option<String> {
+        self.config.get(domain, "graph_url")
+    }
+
     pub fn get_local_groups(&self) -> Vec<String> {
         match self.config.get("global", "local_groups") {
             Some(val) => val.split(',').map(|s| s.to_string()).collect(),
diff --git a/src/common/src/constants.rs b/src/common/src/constants.rs
index 3bb4286..951225f 100644
--- a/src/common/src/constants.rs
+++ b/src/common/src/constants.rs
@@ -35,7 +35,7 @@ pub const DEFAULT_GRAPH: &str = "https://graph.microsoft.com";
 pub const DEFAULT_APP_ID: &str = "b743a22d-6705-4147-8670-d92fa515ee2b";
 pub const DRS_APP_ID: &str = "01cb2876-7ebd-4aa4-9cc9-d28bd4d359a9";
 pub const DEFAULT_CONN_TIMEOUT: u64 = 30;
-pub const DEFAULT_CACHE_TIMEOUT: u64 = 15;
+pub const DEFAULT_CACHE_TIMEOUT: u64 = 300;
 pub const DEFAULT_SELINUX: bool = true;
 pub const DEFAULT_HSM_PIN_PATH: &str = "/var/lib/himmelblaud/hsm-pin";
 pub const DEFAULT_HELLO_ENABLED: bool = true;
diff --git a/src/common/src/idprovider/himmelblau.rs b/src/common/src/idprovider/himmelblau.rs
index 114b98a..87ec361 100644
--- a/src/common/src/idprovider/himmelblau.rs
+++ b/src/common/src/idprovider/himmelblau.rs
@@ -22,7 +22,6 @@ use super::interface::{
 use crate::config::split_username;
 use crate::config::HimmelblauConfig;
 use crate::config::IdAttr;
-use crate::constants::DEFAULT_GRAPH;
 use crate::db::KeyStoreTxn;
 use crate::idprovider::interface::tpm;
 use crate::unix_proto::PamAuthRequest;
@@ -112,12 +111,13 @@ impl HimmelblauMultiProvider {
             let mut idmap_lk = idmap.write().await;
             let authority_host = cfg.get_authority_host(&domain);
             let tenant_id = cfg.get_tenant_id(&domain);
+            let graph_url = cfg.get_graph_url(&domain);
             let graph = match Graph::new(
                 &cfg.get_odc_provider(&domain),
                 &domain,
                 Some(&authority_host),
                 tenant_id.as_deref(),
-                Some(DEFAULT_GRAPH),
+                graph_url.as_deref(),
             )
             .await
             {
@@ -1407,6 +1407,12 @@ impl HimmelblauProvider {
                     "Setting domain {} config authority_host to {}",
                     self.domain, &self.authority_host
                 );
+                let graph_url = self.graph.graph_url();
+                config.set(&self.domain, "graph_url", &graph_url);
+                debug!(
+                    "Setting domain {} config graph_url to {}",
+                    self.domain, &graph_url
+                );
                 if let Err(e) = config.write_server_config() {
                     return Err(MsalError::GeneralFailure(format!(
                         "Failed to write domain join configuration: {:?}",
diff --git a/src/config/himmelblau.conf.example b/src/config/himmelblau.conf.example
index 2d933a8..7a6ad34 100644
--- a/src/config/himmelblau.conf.example
+++ b/src/config/himmelblau.conf.example
@@ -91,7 +91,7 @@
 # shell = /bin/bash ; default shell for the user
 # idmap_range = 5000000-5999999
 # connection_timeout = 2
-# cache_timeout = 15
+# cache_timeout = 300
 # use_etc_skel = false
 # selinux = true