diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 16515e39..25a31337 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -254,7 +254,7 @@ jobs:
         run: |
           export BUILD_PREFIX=$MAMBA_ROOT_PREFIX/envs/xeus-cpp-wasm-build
           set -e
-          micromamba create -n xeus-lite-host jupyterlite-core
+          micromamba create -n xeus-lite-host jupyterlite-core=0.6
           micromamba activate xeus-lite-host
           cd build/test
           # Fresh install browsers, and run Emscripten tests in them
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e2d3cc56..5b6994ff 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -147,7 +147,7 @@ To do this on Ubuntu x86 execute the following
 
 To build Jupyter Lite with this kernel without creating a website you can execute the following
 ```bash
-micromamba create -n xeus-lite-host jupyterlite-core jupyter_server -c conda-forge
+micromamba create -n xeus-lite-host jupyterlite-core=0.6 jupyter_server -c conda-forge
 micromamba activate xeus-lite-host
 python -m pip install jupyterlite-xeus
 jupyter lite build --XeusAddon.prefix=$PREFIX
diff --git a/README.md b/README.md
index 8b7a84f8..34575384 100644
--- a/README.md
+++ b/README.md
@@ -149,7 +149,7 @@ To do this on Ubuntu x86 execute the following
 
 To build Jupyter Lite with this kernel without creating a website you can execute the following
 ```bash
-micromamba create -n xeus-lite-host jupyterlite-core jupyter_server -c conda-forge
+micromamba create -n xeus-lite-host jupyterlite-core=0.6 jupyter_server -c conda-forge
 micromamba activate xeus-lite-host
 python -m pip install jupyterlite-xeus
 jupyter lite build --XeusAddon.prefix=$PREFIX
diff --git a/docs/source/InstallationAndUsage.rst b/docs/source/InstallationAndUsage.rst
index 9656efae..74898e63 100644
--- a/docs/source/InstallationAndUsage.rst
+++ b/docs/source/InstallationAndUsage.rst
@@ -130,7 +130,7 @@ To build Jupyter Lite with this kernel without creating a website you can execut
 
 .. code-block:: bash
 
-    micromamba create -n xeus-lite-host jupyterlite-core jupyter_server -c conda-forge
+    micromamba create -n xeus-lite-host jupyterlite-core=0.6 jupyter_server -c conda-forge
     micromamba activate xeus-lite-host
     python -m pip install jupyterlite-xeus
     jupyter lite build --XeusAddon.prefix=$PREFIX