diff --git a/README.md b/README.md
index 39cbd2a222..d5dccb7724 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,6 @@ cd neon
 make -j5
 ```
 
-
 #### building on OSX (12.3.1)
 1. Install XCode 
 ```
@@ -82,7 +81,7 @@ make -j5
 To run the `psql` client, install the `postgresql-client` package or modify `PATH` and `LD_LIBRARY_PATH` to include `tmp_install/bin` and `tmp_install/lib`, respectively.
 
 To run the integration tests or Python scripts (not required to use the code), install
-Python (3.7 or higher), and install python3 packages using `./scripts/pysync` (requires poetry) in the project directory.
+Python (3.9 or higher), and install python3 packages using `./scripts/pysync` (requires poetry) in the project directory.
 
 
 #### running neon database
diff --git a/docs/sourcetree.md b/docs/sourcetree.md
index 5ddc6208d2..81e0f2fe88 100644
--- a/docs/sourcetree.md
+++ b/docs/sourcetree.md
@@ -91,18 +91,18 @@ so manual installation of dependencies is not recommended.
 A single virtual environment with all dependencies is described in the single `Pipfile`.
 
 ### Prerequisites
-- Install Python 3.7 (the minimal supported version) or greater.
+- Install Python 3.9 (the minimal supported version) or greater.
     - Our setup with poetry should work with newer python versions too. So feel free to open an issue with a `c/test-runner` label if something doesnt work as expected.
-    - If you have some trouble with other version you can resolve it by installing Python 3.7 separately, via pyenv or via system package manager e.g.:
+    - If you have some trouble with other version you can resolve it by installing Python 3.9 separately, via pyenv or via system package manager e.g.:
       ```bash
       # In Ubuntu
       sudo add-apt-repository ppa:deadsnakes/ppa
       sudo apt update
-      sudo apt install python3.7
+      sudo apt install python3.9
       ```
 - Install `poetry`
     - Exact version of `poetry` is not important, see installation instructions available at poetry's [website](https://python-poetry.org/docs/#installation)`.
-- Install dependencies via `./scripts/pysync`. Note that CI uses Python 3.7 so if you have different version some linting tools can yield different result locally vs in the CI.
+- Install dependencies via `./scripts/pysync`. Note that CI uses Python 3.9 so if you have different version some linting tools can yield different result locally vs in the CI.
 
 Run `poetry shell` to activate the virtual environment.
 Alternatively, use `poetry run` to run a single command in the venv, e.g. `poetry run pytest`.
diff --git a/pyproject.toml b/pyproject.toml
index b70eb19009..def55f6671 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ description = ""
 authors = []
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.9"
 pytest = "^6.2.5"
 psycopg2-binary = "^2.9.1"
 typing-extensions = "^3.10.0"