diff --git a/pyproject.toml b/pyproject.toml
index a726451..db71db2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ packages = [
 [tool.poetry.dependencies]
 python = "^3.10"
 openfeature-sdk = ">=0.9.0,<1"
-launchdarkly-server-sdk = ">=9.17.0,<10"
+launchdarkly-server-sdk = ">=9.18.3,<10"
 
 
 [tool.poetry.group.dev.dependencies]
@@ -44,7 +44,6 @@ optional = true
 [tool.poetry.group.docs.dependencies]
 sphinx = "^6.0.0"
 sphinx-rtd-theme = ">=1.3,<3.0"
-certifi = ">=2018.4.16"
 expiringdict = ">=1.1.4"
 pyrfc3339 = ">=1.0"
 jsonpickle = ">1.4.1"