diff --git a/poetry.lock b/poetry.lock
index 15f1c4f..325dd62 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -328,14 +328,14 @@ files = [
 
 [[package]]
 name = "flagsmith-flag-engine"
-version = "11.1.0"
+version = "11.1.1"
 description = "Flag engine for the Flagsmith API."
 optional = false
 python-versions = ">=3.10"
 groups = ["main"]
 files = [
-    {file = "flagsmith_flag_engine-11.1.0-py3-none-any.whl", hash = "sha256:a3e68a06b6792559faf897f1cead817716760b33c39283505b37d8cbe3f181c0"},
-    {file = "flagsmith_flag_engine-11.1.0.tar.gz", hash = "sha256:b627a59f5def981aead5f9694161dbf0464ab042464105707076cbef129a9f01"},
+    {file = "flagsmith_flag_engine-11.1.1-py3-none-any.whl", hash = "sha256:17767e9e16859841772a895bc9c660d593499da40d181b95e838bd61441dee92"},
+    {file = "flagsmith_flag_engine-11.1.1.tar.gz", hash = "sha256:effad6d0f3d7aa797272333b133cf1cf8c0f524cf248e2f82e748bee2fd97d34"},
 ]
 
 [package.dependencies]
@@ -1235,4 +1235,4 @@ typing-extensions = {version = ">=4.13.2", markers = "python_version < \"3.11\""
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<4"
-content-hash = "2a0d8779060f346fb2e6ac9cb9c47a405003e5b63dc425ee9b55e4da97ad405d"
+content-hash = "079238a62ea14b7bbf4852682e950390da201cd67fecc602c16144faef8b8ad2"
diff --git a/pyproject.toml b/pyproject.toml
index 15b2a1e..4a24f3f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ documentation = "https://docs.flagsmith.com"
 packages = [{ include = "flagsmith" }]
 
 [tool.poetry.dependencies]
-flagsmith-flag-engine = "^11.0.0"
+flagsmith-flag-engine = "^11.1.1"
 iso8601 = { version = "^2.1.0", python = "<3.11" }
 python = ">=3.10,<4"
 requests = "^2.32.3"