diff --git a/news/changelog-1.11.md b/news/changelog-1.11.md
index 63e16dd8fd2..c0d9d5881c1 100644
--- a/news/changelog-1.11.md
+++ b/news/changelog-1.11.md
@@ -165,6 +165,7 @@ All changes included in 1.11:
 - ([#14834](https://github.com/quarto-dev/quarto-cli/issues/14834)): Fix `ERROR: Internal Error` when rendering documents whose payload exceeds the Julia server's socket send buffer.
 - ([PumasAI/quarto-julia-engine#8](https://github.com/PumasAI/quarto-julia-engine/pull/8)): Support `keep-ipynb`, which writes the executed notebook to `<stem>.ipynb` alongside the source file.
 - ([PumasAI/quarto-julia-engine#14](https://github.com/PumasAI/quarto-julia-engine/pull/14)): Fix the Julia worker process being left running after a failed render without an execution daemon.
+- ([PumasAI/quarto-julia-engine#16](https://github.com/PumasAI/quarto-julia-engine/pull/16)): Update QuartoNotebookRunner to 0.18.5, which fixes renders hanging on long error stacktraces or on cells that leave a process running, blank R plots with `fig-format: svg`, slow shutdown of workers with a lot of `stdout` output, and cached cell outputs not being invalidated when document or project metadata changes.
 - ([PumasAI/quarto-julia-engine#13](https://github.com/PumasAI/quarto-julia-engine/pull/13)): Shell (`;`), help (`?`), and Pkg (`]`) mode cells now work when the cell has `#|` options.
 - ([PumasAI/quarto-julia-engine#11](https://github.com/PumasAI/quarto-julia-engine/pull/11)): Support `fig-format: retina`, normalized to `png` with doubled `fig-dpi` as in the `jupyter` and `knitr` engines.
 - ([PumasAI/quarto-julia-engine#7](https://github.com/PumasAI/quarto-julia-engine/pull/7)): Support `execute-dir`, shared worker processes across notebooks with matching configs (`share_worker_process: true`).
diff --git a/src/resources/extension-subtrees/julia-engine/CHANGELOG.md b/src/resources/extension-subtrees/julia-engine/CHANGELOG.md
index de45a5eff5d..2338bcb98e7 100644
--- a/src/resources/extension-subtrees/julia-engine/CHANGELOG.md
+++ b/src/resources/extension-subtrees/julia-engine/CHANGELOG.md
@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [0.2.3](https://github.com/PumasAI/quarto-julia-engine/releases/tag/v0.2.3) - 2026-10-21
+
+- Updated to QuartoNotebookRunner 0.18.5 [#16](https://github.com/PumasAI/quarto-julia-engine/pull/16):
+  - `notebook_options()` now includes all document and project metadata, and any metadata change invalidates the cell output cache.
+  - Notebooks with long error stacktraces no longer hang the render.
+  - A cell that starts a process and leaves it running no longer hangs the notebook.
+  - Workers that write a lot to `stdout` no longer take 30 seconds to shut down.
+  - R plots are no longer blank under `fig-format: svg`.
+  - Frontmatter merging no longer warns on Julia 1.13.
+
 ## [0.2.2](https://github.com/PumasAI/quarto-julia-engine/releases/tag/v0.2.2) - 2026-09-08
 
 - A failed render without an execution daemon no longer leaves the notebook's worker process running [#14](https://github.com/PumasAI/quarto-julia-engine/pull/14).
diff --git a/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/Project.toml b/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/Project.toml
index dbb2263da24..72cb4c53008 100644
--- a/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/Project.toml
+++ b/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/Project.toml
@@ -2,4 +2,4 @@
 QuartoNotebookRunner = "4c0109c6-14e9-4c88-93f0-2b974d3468f4"
 
 [compat]
-QuartoNotebookRunner = "=0.18.2"
+QuartoNotebookRunner = "=0.18.5"
diff --git a/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/_extension.yml b/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/_extension.yml
index 61737dfc0b5..b84df8b45f9 100644
--- a/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/_extension.yml
+++ b/src/resources/extension-subtrees/julia-engine/_extensions/julia-engine/_extension.yml
@@ -1,5 +1,5 @@
 title: Quarto Julia Engine Extension
-version: 0.2.2
+version: 0.2.3
 quarto-required: ">=1.9.0"
 contributes:
   engines:
diff --git a/src/resources/extension-subtrees/julia-engine/tests/smoke/julia-engine/julia.test.ts b/src/resources/extension-subtrees/julia-engine/tests/smoke/julia-engine/julia.test.ts
index c46a857c450..3b578dca9bf 100644
--- a/src/resources/extension-subtrees/julia-engine/tests/smoke/julia-engine/julia.test.ts
+++ b/src/resources/extension-subtrees/julia-engine/tests/smoke/julia-engine/julia.test.ts
@@ -23,14 +23,11 @@ function quartoRuntimeDir(): string {
       base = join(Deno.env.get("LOCALAPPDATA")!, "quarto");
       break;
     default: {
-      // Note: quarto's xdgUserRuntimeDir does not append the app name
-      // when XDG_RUNTIME_DIR is set (unlike the other XDG dir functions).
       const xdgRuntime = Deno.env.get("XDG_RUNTIME_DIR");
       if (xdgRuntime) {
-        base = xdgRuntime;
+        base = join(xdgRuntime, "quarto");
       } else {
-        const cacheHome = Deno.env.get("XDG_CACHE_HOME") ??
-          join(Deno.env.get("HOME")!, ".cache");
+        const cacheHome = Deno.env.get("XDG_CACHE_HOME") ?? join(Deno.env.get("HOME")!, ".cache");
         base = join(cacheHome, "quarto");
       }
       break;
@@ -188,10 +185,7 @@ Deno.test("julia engine", async (t) => {
       },
     ).outputSync();
     assertSuccess(force_close_output);
-    assertStderrIncludes(
-      force_close_output,
-      "Worker force-closed successfully",
-    );
+    assertStderrIncludes(force_close_output, "Worker force-closed successfully");
 
     const status_output_2 = new Deno.Command(
       quartoCmd(),