diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index f576f97bf..c6aa6ebe0 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -27,13 +27,13 @@ jobs:
       - name: Install Poetry for Linux
         if: runner.os == 'Linux'
         run: |
-          curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python - --preview --version 1.1.0b2
+          curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python - --preview --version 1.1.0b4
           echo "::add-path::$HOME/.poetry/bin"
 
       - name: Install Poetry for Windows
         if: runner.os == 'Windows'
         run: |
-          (Invoke-WebRequest -Uri https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py -UseBasicParsing).Content | python - --preview --version 1.1.0b2
+          (Invoke-WebRequest -Uri https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py -UseBasicParsing).Content | python - --preview --version 1.1.0b4
           echo "::add-path::$env:USERPROFILE\.poetry\bin"
 
       - name: Install Python dependencies
diff --git a/README.md b/README.md
index 289f1d958..b4371f074 100644
--- a/README.md
+++ b/README.md
@@ -34,23 +34,28 @@ appear in your `PATH` before the Windows version, or this error will appear:
 
 This is a temporary workaround! The currently released version of Poetry
 (1.0.10) cannot handle the `azure-identity` package, so we need to install the
-preview version (1.1.0b2).
+preview version (1.1.0b4).
 
 On Linux (or WSL):
 
 ```bash
-curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3 - --preview --version 1.1.0b2
+curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3 - --preview --version 1.1.0b4
 source $HOME/.poetry/env
 ```
 
 On Windows (in PowerShell):
 
 ```powershell
-(Invoke-WebRequest -Uri https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py -UseBasicParsing).Content | python - --preview --version 1.1.0a2
+(Invoke-WebRequest -Uri https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py -UseBasicParsing).Content | python - --preview --version 1.1.0b4
 # the path can be added to system, so it applies to every terminal.
 $env:PATH += ";$env:USERPROFILE\.poetry\bin"
 ```
 
+If you already have Poetry installed, you can update it like:
+```bash
+poetry self update --preview 1.1.0b4
+```
+
 ### Install Python packages
 
 Then use Poetry to install LISAv3's Python package dependencies: