diff --git a/panel/package-lock.json b/panel/package-lock.json
index 300770e300..571c15a5be 100644
--- a/panel/package-lock.json
+++ b/panel/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.5.0-a.6",
       "license": "BSD-3-Clause",
       "dependencies": {
-        "@bokeh/bokehjs": "3.5.0-dev.8",
+        "@bokeh/bokehjs": "3.5.0-rc.1",
         "@types/debounce": "^1.2.0",
         "@types/gl-matrix": "^2.4.5",
         "ace-code": "^1.24.1",
@@ -41,9 +41,9 @@
       }
     },
     "node_modules/@bokeh/bokehjs": {
-      "version": "3.5.0-dev.8",
-      "resolved": "https://registry.npmjs.org/@bokeh/bokehjs/-/bokehjs-3.5.0-dev.8.tgz",
-      "integrity": "sha512-n0c2/SPex3xpMoX5lqRwr0OY2bkvqihc0Ds9RbKP6F6p/JiVf5IhosmZ4anNiJAVJJsfOxzXfKdNRjIG4zNqKQ==",
+      "version": "3.5.0-rc.1",
+      "resolved": "https://registry.npmjs.org/@bokeh/bokehjs/-/bokehjs-3.5.0-rc.1.tgz",
+      "integrity": "sha512-WOUBY6ILHRUESxB24BpYqvaHym73CaqWRNskzWwb1p9QgnLwtJwhL7ibtREg/fuO+ifTpfCDoKSHaP3jmbflyQ==",
       "workspaces": [
         "./make",
         "./src/compiler",
diff --git a/panel/package.json b/panel/package.json
index d244fecdbb..bf460f28ed 100644
--- a/panel/package.json
+++ b/panel/package.json
@@ -8,7 +8,7 @@
     "url": "https://github.com/holoviz/panel.git"
   },
   "dependencies": {
-    "@bokeh/bokehjs": "3.5.0-dev.8",
+    "@bokeh/bokehjs": "3.5.0-rc.1",
     "@types/debounce": "^1.2.0",
     "@types/gl-matrix": "^2.4.5",
     "ace-code": "^1.24.1",
diff --git a/panel/tests/conftest.py b/panel/tests/conftest.py
index 37653a72cc..8126d69d70 100644
--- a/panel/tests/conftest.py
+++ b/panel/tests/conftest.py
@@ -402,6 +402,7 @@ def server_cleanup():
 def cache_cleanup():
     state.clear_caches()
     Design._resolve_modifiers.cache_clear()
+    state._stylesheets.clear()
 
 @pytest.fixture
 def autoreload():
diff --git a/panel/tests/test_param.py b/panel/tests/test_param.py
index 0d57504afd..dfbe83245c 100644
--- a/panel/tests/test_param.py
+++ b/panel/tests/test_param.py
@@ -1792,7 +1792,7 @@ def function(value):
 
     root = pane.get_root(document, comm)
 
-    wait_until(lambda: root.children[0].text == '<p>False</p>\n')
+    wait_until(lambda: root.children[0].text == '<p>False</p>\n', timeout=10_000)
 
     checkbox.value = True
 
@@ -1811,7 +1811,7 @@ def function(value):
 
     root = pane.get_root(document, comm)
 
-    wait_until(lambda: len(root.children) == 2)
+    wait_until(lambda: len(root.children) == 2, timeout=10_000)
     assert root.children[0].text == '<p>False</p>\n'
     assert root.children[1].text == '<p>True</p>\n'
 
@@ -1866,6 +1866,7 @@ async def function(value):
     assert root.children[1].text == '<p>False</p>\n'
 
 
+@pytest.mark.flaky(max_runs=3)
 def test_param_generator_multiple(document, comm):
     checkbox = Checkbox(value=False)
 
@@ -1877,7 +1878,7 @@ def function(value):
 
     root = pane.get_root(document, comm)
 
-    wait_until(lambda: root.children[0].text == '<p>True</p>\n')
+    wait_until(lambda: root.children[0].text == '<p>True</p>\n', timeout=10_000)
 
     checkbox.value = True
 
diff --git a/pixi.toml b/pixi.toml
index 42e4b5db35..4785f0fa2a 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -22,7 +22,7 @@ lint = ["py311", "lint"]
 
 [dependencies]
 bleach = "*"
-bokeh = "==3.5.0.dev8"
+bokeh = "==3.5.0rc1"
 linkify-it-py = "*"
 markdown = "*"
 markdown-it-py = "*"
diff --git a/pyproject.toml b/pyproject.toml
index f694fd112a..1f6d76c395 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = [
     "hatchling",
     "hatch-vcs",
     "param >=2.1.0",
-    "bokeh ==3.5.0.dev8",
+    "bokeh ==3.5.0rc1",
     "pyviz_comms >=0.7.4",
     "requests",
     "packaging",
@@ -47,7 +47,7 @@ classifiers = [
 ]
 
 dependencies = [
-    'bokeh ==3.5.0.dev8',
+    'bokeh ==3.5.0rc1',
     'param >=2.1.0,<3.0',
     'pyviz_comms >=2.0.0',
     'markdown',