diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7db320d..fac5faa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Function to unmount fileset secret from a deployment
+
 ### Changed
 
 - This file and CONTRIBUTING.rst to markdown
diff --git a/datacrunch/containers/containers.py b/datacrunch/containers/containers.py
index de16a91..a78efb2 100644
--- a/datacrunch/containers/containers.py
+++ b/datacrunch/containers/containers.py
@@ -1008,3 +1008,15 @@ def create_fileset_secret_from_file_paths(self, secret_name: str, file_paths: Li
             "name": secret_name,
             "files": processed_files
         })
+
+    def unmount_fileset_secret(self, deployment_name: str, fileset_secret_name: str) -> None:
+        """Unmounts a fileset secret from a deployment.
+
+        Args:
+            deployment_name: Name of the deployment.
+            secret_name: Name of the secret to unmount.
+        """
+        self.client.delete(FILESET_SECRETS_ENDPOINT, {
+            "deployment_name": deployment_name,
+            "fileset_secret_name": fileset_secret_name,
+        })