diff --git a/buildSrc/src/main/groovy/airbyte-python.gradle b/buildSrc/src/main/groovy/airbyte-python.gradle
index ef710f5a5bf4..38a88c38b5fa 100644
--- a/buildSrc/src/main/groovy/airbyte-python.gradle
+++ b/buildSrc/src/main/groovy/airbyte-python.gradle
@@ -84,6 +84,8 @@ class AirbytePythonPlugin implements Plugin<Project> {
             installVirtualenv = true
             pip 'pip:21.3.1'
             pip 'mccabe:0.6.1'
+            // https://github.com/csachs/pyproject-flake8/issues/13
+            pip 'flake8:4.0.1'
             // flake8 doesn't support pyproject.toml files
             // and thus there is the wrapper "pyproject-flake8" for this
             pip 'pyproject-flake8:0.0.1a2'
diff --git a/tools/tox_ci.ini b/tools/tox_ci.ini
index ce3f2d4d980f..fde9942ccb98 100644
--- a/tools/tox_ci.ini
+++ b/tools/tox_ci.ini
@@ -13,6 +13,7 @@ envlist =
 deps =
      -e{toxinidir}/{envname}[tests]
      pytest~=6.2.5
+     flake8==4.0.1
      pyproject-flake8
 
 [testenv]