diff --git a/modules/importer/src/model/osv.rs b/modules/importer/src/model/osv.rs
index aec1592dc..75d018bd7 100644
--- a/modules/importer/src/model/osv.rs
+++ b/modules/importer/src/model/osv.rs
@@ -6,8 +6,14 @@ pub struct OsvImporter {
     #[serde(flatten)]
     pub common: CommonImporter,
 
+    /// The URL to the git repository of the OSV data
     pub source: String,
 
+    /// An optional branch. Will use the default branch otherwise.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub branch: Option<String>,
+
+    /// An optional path to start searching for documents. Will use the root of the repository otherwise.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub path: Option<String>,
 }
diff --git a/modules/importer/src/server/common/walker/git.rs b/modules/importer/src/server/common/walker/git.rs
index 0f4bbb2b7..a1447479b 100644
--- a/modules/importer/src/server/common/walker/git.rs
+++ b/modules/importer/src/server/common/walker/git.rs
@@ -66,6 +66,9 @@ where
     /// The git source to clone from
     pub source: String,
 
+    /// The branch to check out
+    pub branch: Option<String>,
+
     /// A path inside the cloned repository to start searching for files
     pub path: Option<String>,
 
@@ -86,6 +89,7 @@ where
     pub fn new(source: impl Into<String>, handler: H) -> Self {
         Self {
             source: source.into(),
+            branch: None,
             path: None,
             continuation: Default::default(),
             working_dir: (),
@@ -102,6 +106,7 @@ where
     pub fn handler<U: Handler>(self, handler: U) -> GitWalker<U, T> {
         GitWalker {
             source: self.source,
+            branch: self.branch,
             path: self.path,
             continuation: self.continuation,
             working_dir: self.working_dir,
@@ -123,6 +128,7 @@ where
     ) -> GitWalker<H, U> {
         GitWalker {
             source: self.source,
+            branch: self.branch,
             path: self.path,
             continuation: self.continuation,
             working_dir,
@@ -130,6 +136,11 @@ where
         }
     }
 
+    pub fn branch(mut self, branch: Option<impl Into<String>>) -> Self {
+        self.branch = branch.map(|s| s.into());
+        self
+    }
+
     pub fn path(mut self, path: Option<impl Into<String>>) -> Self {
         self.path = path.map(|s| s.into());
         self
@@ -186,9 +197,13 @@ where
         // clone or open repository
 
         let result = info_span!("clone repository").in_scope(|| {
-            RepoBuilder::new()
-                .fetch_options(fo)
-                .clone(&self.source, path)
+            let mut builder = RepoBuilder::new();
+
+            if let Some(branch) = &self.branch {
+                builder.branch(branch);
+            }
+
+            builder.fetch_options(fo).clone(&self.source, path)
         });
 
         let repo = match result {
diff --git a/modules/importer/src/server/osv/mod.rs b/modules/importer/src/server/osv/mod.rs
index 8da8d11ab..8b1c4eb82 100644
--- a/modules/importer/src/server/osv/mod.rs
+++ b/modules/importer/src/server/osv/mod.rs
@@ -94,6 +94,7 @@ impl super::Server {
 
         let walker = OsvWalker::new(osv.source.clone())
             .continuation(continuation)
+            .branch(osv.branch)
             .path(osv.path)
             .callbacks(Context {
                 context,
diff --git a/modules/importer/src/server/osv/walker.rs b/modules/importer/src/server/osv/walker.rs
index 33c405ddf..f67b0c9f1 100644
--- a/modules/importer/src/server/osv/walker.rs
+++ b/modules/importer/src/server/osv/walker.rs
@@ -101,6 +101,11 @@ where
         }
     }
 
+    pub fn branch(mut self, branch: Option<impl Into<String>>) -> Self {
+        self.walker = self.walker.branch(branch);
+        self
+    }
+
     pub fn path(mut self, path: Option<impl Into<String>>) -> Self {
         self.walker = self.walker.path(path);
         self
diff --git a/server/src/sample_data.rs b/server/src/sample_data.rs
index 5e39cef64..7d29fcd09 100644
--- a/server/src/sample_data.rs
+++ b/server/src/sample_data.rs
@@ -1,11 +1,12 @@
-use std::collections::HashSet;
-use std::time::Duration;
+use std::{collections::HashSet, time::Duration};
 use trustify_common::config::Database;
-use trustify_module_importer::model::{
-    CommonImporter, CsafImporter, CveImporter, ImporterConfiguration, OsvImporter, SbomImporter,
-    DEFAULT_SOURCE_CVEPROJECT,
+use trustify_module_importer::{
+    model::{
+        CommonImporter, CsafImporter, CveImporter, ImporterConfiguration, OsvImporter,
+        SbomImporter, DEFAULT_SOURCE_CVEPROJECT,
+    },
+    service::{Error, ImporterService},
 };
-use trustify_module_importer::service::{Error, ImporterService};
 use url::Url;
 
 async fn add(
@@ -27,6 +28,7 @@ async fn add_osv(
     name: &str,
     source: &str,
     base: Option<&str>,
+    branch: Option<&str>,
     description: &str,
 ) -> anyhow::Result<()> {
     add(
@@ -40,6 +42,7 @@ async fn add_osv(
                 labels: Default::default(),
             },
             source: source.to_string(),
+            branch: branch.map(ToString::to_string),
             path: base.map(|s| s.into()),
         }),
     )
@@ -136,6 +139,7 @@ pub async fn sample_data(db: trustify_common::db::Database) -> anyhow::Result<()
         "osv-pypa",
         "https://github.com/pypa/advisory-database",
         Some("vulns"),
+        None,
         "Python Packaging Advisory Database",
     )
     .await?;
@@ -145,6 +149,7 @@ pub async fn sample_data(db: trustify_common::db::Database) -> anyhow::Result<()
         "osv-psf",
         "https://github.com/psf/advisory-database",
         Some("advisories"),
+        None,
         "Python Software Foundation Advisory Database",
     )
     .await?;
@@ -154,6 +159,7 @@ pub async fn sample_data(db: trustify_common::db::Database) -> anyhow::Result<()
         "osv-r",
         "https://github.com/RConsortium/r-advisory-database",
         Some("vulns"),
+        None,
         "RConsortium Advisory Database",
     )
     .await?;
@@ -163,9 +169,20 @@ pub async fn sample_data(db: trustify_common::db::Database) -> anyhow::Result<()
         "osv-oss-fuzz",
         "https://github.com/google/oss-fuzz-vulns",
         Some("vulns"),
+        None,
         "OSS-Fuzz vulnerabilities",
     )
     .await?;
 
+    add_osv(
+        &importer,
+        "osv-rustsec",
+        "https://github.com/rustsec/advisory-db",
+        Some("crates"),
+        Some("osv"),
+        "RustSec Advisory Database",
+    )
+    .await?;
+
     Ok(())
 }