diff --git a/design-docs/src/mdbook/book.toml b/design-docs/src/mdbook/book.toml
index e3c7d41c..c55981b7 100644
--- a/design-docs/src/mdbook/book.toml
+++ b/design-docs/src/mdbook/book.toml
@@ -5,8 +5,8 @@ multilingual = false
 src = "src"
 title = "Hedgehog Dataplane Design Notes"
 
-#[preprocessor.plantuml]
-#after = ["links"]
+[preprocessor.plantuml]
+after = ["links"]
 
 [preprocessor.mermaid]
 after = ["links"]
diff --git a/scripts/dpdk-sys.env b/scripts/dpdk-sys.env
index a2b0349f..92fe6694 100644
--- a/scripts/dpdk-sys.env
+++ b/scripts/dpdk-sys.env
@@ -1,2 +1,2 @@
 DPDK_SYS_BRANCH="main"
-DPDK_SYS_COMMIT="e4055e30aa6c44dcf97d7b4c992c6db5a1894241"
+DPDK_SYS_COMMIT="4edea15a6faf28083227ef23d6580f967b56a852"