diff --git a/src/codeblocks/MDRC.ts b/src/codeblocks/MDRC.ts
index 7762bbc2..a7a2b73e 100644
--- a/src/codeblocks/MDRC.ts
+++ b/src/codeblocks/MDRC.ts
@@ -9,6 +9,7 @@ export class CodeblockMDRC extends MarkdownRenderChild {
 	source: string;
 	plugin: BreadcrumbsPlugin;
 	component: CodeblockTree | CodeblockMermaid | undefined;
+	id: string;
 
 	constructor(
 		plugin: BreadcrumbsPlugin,
@@ -17,12 +18,26 @@ export class CodeblockMDRC extends MarkdownRenderChild {
 	) {
 		super(containerEl);
 
+		this.id = window.crypto.randomUUID();
+
 		this.plugin = plugin;
 		this.source = source;
 	}
 
+	async update(): Promise<void> {
+		log.debug("CodeblockMDRC.update");
+		if (this.component) {
+			try {
+				this.component.update();
+			} catch (e) {
+				log.error("failed to update codeblock", e);
+			}
+		}
+	}
+
 	async onload(): Promise<void> {
 		log.debug("CodeblockMDRC.load");
+		Codeblocks.register_codeblock(this);
 
 		const { parsed, errors } = Codeblocks.parse_source(
 			this.plugin,
@@ -65,6 +80,7 @@ export class CodeblockMDRC extends MarkdownRenderChild {
 
 	onunload(): void {
 		log.debug("CodeblockMDRC.unload");
+		Codeblocks.unregister_codeblock(this);
 
 		this.component?.$destroy();
 	}
diff --git a/src/codeblocks/index.ts b/src/codeblocks/index.ts
index fb7d56c3..75d8e845 100644
--- a/src/codeblocks/index.ts
+++ b/src/codeblocks/index.ts
@@ -12,6 +12,7 @@ import type BreadcrumbsPlugin from "src/main";
 import { get_all_hierarchy_fields } from "src/utils/hierarchies";
 import { Mermaid } from "src/utils/mermaid";
 import { quote_join } from "src/utils/strings";
+import { CodeblockMDRC } from "src/codeblocks/MDRC";
 
 // TODO: parseYaml
 
@@ -316,8 +317,27 @@ const resolve_options = (
 		parsed,
 	);
 
+const active_codeblocks: Map<string, CodeblockMDRC> = new Map();
+
+const register_codeblock = (codeBlock: CodeblockMDRC) => {
+	active_codeblocks.set(codeBlock.id, codeBlock);
+}
+
+const unregister_codeblock = (codeBlock: CodeblockMDRC) => {
+	active_codeblocks.delete(codeBlock.id);
+}
+
+const update_codeblocks = () => {
+	for (const codeBlock of active_codeblocks.values()) {
+		void codeBlock.update();
+	}
+}
+
 export const Codeblocks = {
 	FIELDS,
 	parse_source,
 	resolve_options,
+	register_codeblock,
+	unregister_codeblock,
+	update_codeblocks,
 };
diff --git a/src/components/codeblocks/CodeblockMermaid.svelte b/src/components/codeblocks/CodeblockMermaid.svelte
index 621f3140..52e84723 100644
--- a/src/components/codeblocks/CodeblockMermaid.svelte
+++ b/src/components/codeblocks/CodeblockMermaid.svelte
@@ -13,11 +13,17 @@
 	import { Paths } from "src/utils/paths";
 	import { wrap_in_codeblock } from "src/utils/strings";
 	import CodeblockErrors from "./CodeblockErrors.svelte";
+	import type { BCEdge } from "src/graph/MyMultiGraph";
 
 	export let plugin: BreadcrumbsPlugin;
 	export let options: ICodeblock["Options"];
 	export let errors: BreadcrumbsError[];
 
+	// this is an exposed function that we can call from the outside to update the codeblock
+	export const update = () => {
+		all_paths = get_all_paths();
+	}
+
 	const base_traversal = ({
 		hierarchy_i,
 	}: {
@@ -36,26 +42,36 @@
 				}),
 		);
 
-	const all_paths =
-		$active_file_store && plugin.graph.hasNode($active_file_store.path)
-			? options.merge_hierarchies
-				? base_traversal({ hierarchy_i: undefined })
-				: plugin.settings.hierarchies
-						.map((_hierarchy, hierarchy_i) =>
-							base_traversal({ hierarchy_i }),
-						)
-						.flat()
-			: [];
-
-	const sliced = all_paths.map((path) =>
+	const get_all_paths = () => {
+		if ($active_file_store && plugin.graph.hasNode($active_file_store.path)) {
+			if (options.merge_hierarchies) {
+				return base_traversal({ hierarchy_i: undefined });
+			} else {
+				return plugin.settings.hierarchies
+					.map((_hierarchy, hierarchy_i) =>
+						base_traversal({ hierarchy_i })
+					)
+					.flat();
+			}
+		} else {
+			return [];
+		}
+	}
+
+	let all_paths = get_all_paths();
+
+	let sliced: BCEdge[][];
+	$: sliced = all_paths.map((path) =>
 		path.slice(options.depth[0], options.depth[1]),
 	);
 
-	const flat_unique = remove_duplicates_by(sliced.flat(), (e) => e.id);
+	let flat_unique: BCEdge[][];
+	$: flat_unique = remove_duplicates_by(sliced.flat(), (e) => e.id);
 
 	const sort = get_edge_sorter(options.sort, plugin.graph);
 
-	const mermaid = wrap_in_codeblock(
+	let mermaid: string;
+	$: mermaid = wrap_in_codeblock(
 		Mermaid.from_edges(flat_unique.sort(sort), {
 			click: { method: "class" },
 			renderer: options.mermaid_renderer,
@@ -91,17 +107,26 @@
 		}),
 		"mermaid",
 	);
-	log.debug(mermaid);
-
-	const render_mermaid = (node: HTMLElement) => {
-		MarkdownRenderer.render(
-			plugin.app,
-			mermaid,
-			node,
-			$active_file_store?.path ?? "",
-			plugin,
-		);
-	};
+	$: log.debug(mermaid);
+
+	let mermaid_element: HTMLElement | undefined;
+
+	// we need to pass both the mermaid string and the target element, so that it re-renders when the mermaid string changes
+	// and for the initial render the target element is undefined, so we need to check for that
+	const render_mermaid = (mermaid_str: string, target_el: HTMLElement | undefined) => {
+		if (target_el) {
+			target_el.empty();
+			MarkdownRenderer.render(
+				plugin.app,
+				mermaid_str,
+				target_el,
+				$active_file_store?.path ?? "",
+				plugin,
+			)
+		}
+	}
+
+	$: render_mermaid(mermaid, mermaid_element);
 </script>
 
 <div class="BC-codeblock-mermaid">
@@ -119,7 +144,7 @@
 		<div
 			class="BC-codeblock-mermaid-graph"
 			style="max-width: var(--file-line-width);"
-			use:render_mermaid
+			bind:this={mermaid_element}
 		></div>
 	{:else}
 		<p class="search-empty-state">No paths found.</p>
diff --git a/src/components/codeblocks/CodeblockTree.svelte b/src/components/codeblocks/CodeblockTree.svelte
index 016653e5..4b9c2f60 100644
--- a/src/components/codeblocks/CodeblockTree.svelte
+++ b/src/components/codeblocks/CodeblockTree.svelte
@@ -8,11 +8,17 @@
 	import FlatEdgeList from "../FlatEdgeList.svelte";
 	import NestedEdgeList from "../NestedEdgeList.svelte";
 	import CodeblockErrors from "./CodeblockErrors.svelte";
+	import type { BCEdge } from "src/graph/MyMultiGraph";
 
 	export let plugin: BreadcrumbsPlugin;
 	export let options: ICodeblock["Options"];
 	export let errors: BreadcrumbsError[];
 
+	// this is an exposed function that we can call from the outside to update the codeblock
+	export const update = () => {
+		all_paths = get_all_paths();
+	}
+
 	const base_traversal = ({
 		hierarchy_i,
 	}: {
@@ -31,18 +37,26 @@
 				}),
 		);
 
-	const all_paths =
-		$active_file_store && plugin.graph.hasNode($active_file_store.path)
-			? options.merge_hierarchies
-				? base_traversal({ hierarchy_i: undefined })
-				: plugin.settings.hierarchies
-						.map((_hierarchy, hierarchy_i) =>
-							base_traversal({ hierarchy_i }),
-						)
-						.flat()
-			: [];
+	const get_all_paths = () => {
+		if ($active_file_store && plugin.graph.hasNode($active_file_store.path)) {
+			if (options.merge_hierarchies) {
+				return base_traversal({ hierarchy_i: undefined });
+			} else {
+				return plugin.settings.hierarchies
+					.map((_hierarchy, hierarchy_i) =>
+						base_traversal({ hierarchy_i })
+					)
+					.flat();
+			}
+		} else {
+			return [];
+		}
+	}
+
+	let all_paths = get_all_paths();
 
-	const sliced = all_paths.map((path) =>
+	let sliced: BCEdge[][];
+	$: sliced = all_paths.map((path) =>
 		path.slice(options.depth[0], options.depth[1]),
 	);
 
diff --git a/src/main.ts b/src/main.ts
index 2d06c51d..75bddf94 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -26,6 +26,7 @@ import { get_all_hierarchy_fields } from "./utils/hierarchies";
 import { deep_merge_objects } from "./utils/objects";
 import { redraw_page_views } from "./views/page";
 import { TreeView } from "./views/tree";
+import { Codeblocks } from "src/codeblocks";
 
 export default class BreadcrumbsPlugin extends Plugin {
 	settings!: BreadcrumbsSettings;
@@ -201,16 +202,17 @@ export default class BreadcrumbsPlugin extends Plugin {
 				(leaf) => new TreeView(leaf, this),
 			);
 
-			// Codeblocks
-			this.registerMarkdownCodeBlockProcessor(
-				"breadcrumbs",
-				(source, el, ctx) => {
-					const mdrc = new CodeblockMDRC(this, el, source);
-					ctx.addChild(mdrc);
-				},
-			);
 		});
 
+		// Codeblocks
+		this.registerMarkdownCodeBlockProcessor(
+			"breadcrumbs",
+			(source, el, ctx) => {
+				const mdrc = new CodeblockMDRC(this, el, source);
+				ctx.addChild(mdrc);
+			},
+		);
+
 		// Commands
 		this.addCommand({
 			id: "breadcrumbs:rebuild-graph",
@@ -343,6 +345,7 @@ export default class BreadcrumbsPlugin extends Plugin {
 		rebuild_graph?: boolean;
 		active_file_store?: boolean;
 		redraw_page_views?: boolean;
+		redraw_codeblocks?: boolean;
 	}) => {
 		log.debug(
 			"refresh >",
@@ -404,6 +407,10 @@ export default class BreadcrumbsPlugin extends Plugin {
 		if (options?.redraw_page_views !== false) {
 			redraw_page_views(this);
 		}
+
+		if (options?.redraw_codeblocks !== false) {
+			Codeblocks.update_codeblocks();
+		}
 	};
 
 	// SOURCE: https://docs.obsidian.md/Plugins/User+interface/Views