diff --git a/images/toolbox/Dockerfile b/images/toolbox/Dockerfile
index c93e772..597051d 100644
--- a/images/toolbox/Dockerfile
+++ b/images/toolbox/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM ubuntu:22.04@sha256:0e5e4a57c2499249aafc3b40fcd541e9a456aab7296681a3994d631587203f97
+FROM ubuntu:24.04@sha256:99c35190e22d294cdace2783ac55effc69d32896daaa265f0bbedbcde4fbe3e5
 
 LABEL maintainer="Antrea <projectantrea-dev@googlegroups.com>"
 LABEL description="A Docker image with useful tools (for networking) based on Ubuntu"
diff --git a/images/toolbox/README.md b/images/toolbox/README.md
index 5500a04..8573b23 100644
--- a/images/toolbox/README.md
+++ b/images/toolbox/README.md
@@ -21,3 +21,4 @@ Here is a changelog for the different versions of this image:
 | 1.2             | Add netperf to image.                                      |
 | 1.3             | Add Windows support.                                       |
 | 1.4             | Add kmod to image.                                         |
+| 1.5             | Update Linux base image to ubuntu:24.04.                   |
diff --git a/images/toolbox/VERSION b/images/toolbox/VERSION
index c068b24..c239c60 100644
--- a/images/toolbox/VERSION
+++ b/images/toolbox/VERSION
@@ -1 +1 @@
-1.4
+1.5