diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index fefefd8ab4325851e169591bf8b873dd5f4a768c..eff3453ad5a6c545694efb2c40d35169222e50ec 100644
--- a/hardening_manifest.yaml
+++ b/hardening_manifest.yaml
@@ -11,7 +11,7 @@ tags:
 # Build args passed to Dockerfile ARGs
 args:
   BASE_IMAGE: "opensource/r/r-base"
-  BASE_TAG: "3.0.14"
+  BASE_TAG: "4.0.3"
 # Docker image labels
 labels:
   org.opencontainers.image.title: "rstudio"