diff --git a/pyproject.toml b/pyproject.toml
index a00ca54..6ef54c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,10 +44,10 @@ packages = [ { include = "spleeter" } ]
 include = ["LICENSE", "spleeter/resources/*.json"]
 
 [tool.poetry.dependencies]
-python = ">=3.7.0,<3.10"
+python = ">=3.6.1,<3.10"
 ffmpeg-python = "0.2.0"
 norbert = "0.2.1"
-httpx = {extras = ["http2"], version = "^0.16.1"}
+httpx = {extras = ["http2"], version = "^0.19.0"}
 typer = "^0.3.2"
 librosa = "0.8.0"
 musdb = {version = "0.3.1", optional = true}
@@ -57,7 +57,7 @@ pandas = "^1.1.2"
 numpy = "<1.20.0,>=1.16.0"
 importlib-resources = {version = "^4.1.1", python = "<3.7"}
 importlib-metadata = {version = "^3.0.0", python = "<3.8"}
-llvmlite = "^0.37.0"
+llvmlite = "^0.36.0"
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.2.1"