diff --git a/tests/test-sources/plugins/by-name/codecompanion/default.nix b/tests/test-sources/plugins/by-name/codecompanion/default.nix
index cf41d323..e87a1d72 100644
--- a/tests/test-sources/plugins/by-name/codecompanion/default.nix
+++ b/tests/test-sources/plugins/by-name/codecompanion/default.nix
@@ -1,9 +1,14 @@
+# 2025-12-02: set runNvim to false as the following warning is shown unconditionally:
+# ERROR: [WARN] CodeCompanion.nvim will experience breaking changes soon. Pin to version v17.33.0 or earlier to avoid this.
+# See: https://github.com/olimorris/codecompanion.nvim/pull/2439
 {
   empty = {
+    test.runNvim = false;
     plugins.codecompanion.enable = true;
   };
 
   defaults = {
+    test.runNvim = false;
     plugins.codecompanion = {
       enable = true;
 
@@ -944,6 +949,7 @@
   };
 
   example = {
+    test.runNvim = false;
     plugins.codecompanion = {
       enable = true;