diff --git a/code-generator/pyproject.toml b/code-generator/pyproject.toml
index 4d50576..993a235 100644
--- a/code-generator/pyproject.toml
+++ b/code-generator/pyproject.toml
@@ -10,7 +10,7 @@ python = "^3.11"
 writer = "^0.7.4"
 flake8 = "^7.1.1"
 isort = "^5.13.2"
-black = "^24.8.0"
+black = ">=24.8,<27.0"
 pre-commit = "^3.8.0"
 
 
diff --git a/finance-dashboard/pyproject.toml b/finance-dashboard/pyproject.toml
index 47d2b03..71f63e6 100644
--- a/finance-dashboard/pyproject.toml
+++ b/finance-dashboard/pyproject.toml
@@ -14,7 +14,7 @@ plotly = "^5.24.1"
 yfinance = "0.2.42"
 pre-commit = "^4.0.1"
 flake8 = "^7.1.1"
-black = "^24.10.0"
+black = ">=24.10,<27.0"
 isort = "^5.13.2"
 
 [build-system]
diff --git a/financial-tools-chat/pyproject.toml b/financial-tools-chat/pyproject.toml
index 0adce1b..65ba61b 100644
--- a/financial-tools-chat/pyproject.toml
+++ b/financial-tools-chat/pyproject.toml
@@ -11,20 +11,20 @@ writer = "0.8.2"
 openai = "1.51.2"
 pre-commit = "^3.8.0"
 flake8 = "7.1.1"
-black = "^24.8.0"
+black = ">=24.8,<27.0"
 isort = "^5.13.2"
 markdown = "^3.7"
-python-dotenv = "1.0.1"
+python-dotenv = "1.2.2"
 writer-sdk = "^1.2.0"
 annotated-types = "0.7.0"
 anyio = "4.6.0"
-authlib = "1.3.2"
+authlib = "1.6.12"
 beautifulsoup4 = "4.12.3"
 certifi = "2024.8.30"
 cffi = "1.17.1"
 charset-normalizer = "3.4.0"
 click = "8.1.7"
-cryptography = "43.0.1"
+cryptography = "45.0.7"
 distro = "1.9.0"
 fastapi = "0.115.0"
 frozendict = "2.4.5"
@@ -33,9 +33,9 @@ h11 = "0.14.0"
 html5lib = "1.1"
 httpcore = "1.0.6"
 httpx = "0.27.2"
-idna = "3.10"
+idna = "3.15"
 jiter = "0.6.1"
-lxml = "5.3.0"
+lxml = "6.1.1"
 markupsafe = "3.0.1"
 mccabe = "0.7.0"
 multitasking = "0.0.11"
@@ -53,9 +53,9 @@ pydantic = "2.9.2"
 pydantic-core = "2.23.4"
 pyflakes = "3.2.0"
 python-dateutil = "2.9.0.post0"
-python-multipart = "0.0.12"
+python-multipart = "0.0.29"
 pytz = "2024.2"
-requests = "2.32.3"
+requests = "2.34.2"
 six = "1.16.0"
 sniffio = "1.3.1"
 soupsieve = "2.6"
@@ -64,7 +64,7 @@ tenacity = "9.0.0"
 tqdm = "4.66.5"
 typing-extensions = "4.12.2"
 tzdata = "2024.2"
-urllib3 = "2.2.3"
+urllib3 = "2.7.0"
 uvicorn = "0.31.0"
 watchdog = "3.0.0"
 webencodings = "0.5.1"
diff --git a/hacker-news-social-listener/pyproject.toml b/hacker-news-social-listener/pyproject.toml
index ec18ee0..18233bb 100644
--- a/hacker-news-social-listener/pyproject.toml
+++ b/hacker-news-social-listener/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 python = "^3.10.0"
 writer = "^0.8.2"
 praw = "^7.7.1"
-black = "^24.8.0"
+black = ">=24.8,<27.0"
 flake8 = "^7.1.1"
 isort = "^5.13.2"
 pre-commit = "^3.8.0"
diff --git a/localized-promo-dashboard/pyproject.toml b/localized-promo-dashboard/pyproject.toml
index c2eb97f..e1140a5 100644
--- a/localized-promo-dashboard/pyproject.toml
+++ b/localized-promo-dashboard/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 python = "^3.10.0"
 writer = {version = "^0.6.0rc5"}
 flake8 = "^7.1.1"
-black = "^24.8.0"
+black = ">=24.8,<27.0"
 isort = "^5.13.2"
 pre-commit = "^3.8.0"
 
diff --git a/portfolio-rebalance/pyproject.toml b/portfolio-rebalance/pyproject.toml
index 018210c..6aa4459 100644
--- a/portfolio-rebalance/pyproject.toml
+++ b/portfolio-rebalance/pyproject.toml
@@ -11,14 +11,14 @@ writer = "0.7.5"
 openpyxl = "3.1.5"
 pandas = "2.2.3"
 pypdf2 = "3.0.1"
-python-dotenv = "1.0.1"
+python-dotenv = "1.2.2"
 python-docx = "1.1.2"
 asyncio = "^3.4.3"
 
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^7.1.1"
-black = "^24.8.0"
+black = ">=24.8,<27.0"
 isort = "^5.13.2"
 
 [build-system]
diff --git a/prescribing-info-app/pyproject.toml b/prescribing-info-app/pyproject.toml
index 4145a50..13681f8 100644
--- a/prescribing-info-app/pyproject.toml
+++ b/prescribing-info-app/pyproject.toml
@@ -13,7 +13,7 @@ bs4 = "^0.0.2"
 python-dotenv = "^1.0.1"
 flake8 = "^7.1.1"
 isort = "^5.13.2"
-black = "^24.10.0"
+black = ">=24.10,<27.0"
 pre-commit = "^4.0.1"
 asyncio = "^3.4.3"
 aiohttp = "^3.11.11"