diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3468069..ea87ef7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 # task_spatial_simulators dev
 
 Bug fixes:
+  - `srtsim`: install `shiny` and `shinyBS`, without which `library(SRTsim)`
+    fails on a missing `httpuv`. The method produced no results at all in
+    `run_2026-07-11_18-00-02`.
   - `run_benchmark`: raise `uns_length_cutoff` from 15 to 50, so that
     `extract_uns_metadata` no longer drops the `metric_ids` of components that
     emit more than 15 metrics. All 28 `ks_statistic_gene_cell` metrics were
diff --git a/src/methods/srtsim/config.vsh.yaml b/src/methods/srtsim/config.vsh.yaml
index 9864e83a..d6f6639d 100644
--- a/src/methods/srtsim/config.vsh.yaml
+++ b/src/methods/srtsim/config.vsh.yaml
@@ -21,7 +21,9 @@ engines:
     image: openproblems/base_r:1
     setup:
       - type: r
-        cran: SRTsim
+        # shiny and shinyBS do not come along with SRTsim, which then fails to
+        # load with "there is no package called 'httpuv'"
+        cran: [SRTsim, shiny, shinyBS]
 
 runners:
   - type: executable