diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 3166d1d..6c59082 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,7 +1,3 @@
-c_stdlib:
-- sysroot
-c_stdlib_version:
-- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -10,6 +6,3 @@ channel_targets:
 - conda-forge main
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
-zip_keys:
-- - c_stdlib_version
-  - cdt_name
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 3a8174f..4ad5e53 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "4.1.8" %}
+{% set version = "4.2.0" %}
 
 package:
   name: jupyterlab
@@ -6,7 +6,7 @@ package:
 
 source:
   url: https://pypi.io/packages/source/j/jupyterlab/jupyterlab-{{ version }}.tar.gz
-  sha256: 3384aded8680e7ce504fd63b8bb89a39df21c9c7694d9e7dc4a68742cdb30f9b
+  sha256: 356e9205a6a2ab689c47c8fe4919dba6c076e376d03f26baadc05748c2435dd5
 
 build:
   noarch: python
@@ -35,7 +35,7 @@ requirements:
     - jupyter_core
     - jupyter_server >=2.4.0,<3
     - jupyter-lsp >=2.0.0
-    - jupyterlab_server >=2.27.1,<3
+    - jupyterlab_server >=2.19.0,<3
     - notebook-shim >=0.2
     - packaging
     - python >=3.8