diff --git a/.github/workflows/cicd.yaml b/.github/workflows/cicd.yaml
index 0e721ba9f..95d85cfde 100644
--- a/.github/workflows/cicd.yaml
+++ b/.github/workflows/cicd.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     timeout-minutes: 10
 
     services:
diff --git a/stac_fastapi/pgstac/setup.py b/stac_fastapi/pgstac/setup.py
index 00e8f7478..8664524d0 100644
--- a/stac_fastapi/pgstac/setup.py
+++ b/stac_fastapi/pgstac/setup.py
@@ -31,7 +31,7 @@
         "httpx",
     ],
     "docs": ["mkdocs", "mkdocs-material", "pdocs"],
-    "server": ["uvicorn[standard]==0.17.0.post1"],
+    "server": ["uvicorn[standard]==0.19.0"],
     "awslambda": ["mangum"],
 }
 
diff --git a/stac_fastapi/sqlalchemy/setup.py b/stac_fastapi/sqlalchemy/setup.py
index 00b6ab414..fd4f53027 100644
--- a/stac_fastapi/sqlalchemy/setup.py
+++ b/stac_fastapi/sqlalchemy/setup.py
@@ -29,7 +29,7 @@
         "requests",
     ],
     "docs": ["mkdocs", "mkdocs-material", "pdocs"],
-    "server": ["uvicorn[standard]==0.17.0.post1"],
+    "server": ["uvicorn[standard]==0.19.0"],
 }
 
 
diff --git a/stac_fastapi/sqlalchemy/stac_fastapi/sqlalchemy/extensions/query.py b/stac_fastapi/sqlalchemy/stac_fastapi/sqlalchemy/extensions/query.py
index 36f7a7710..17fc85ab9 100644
--- a/stac_fastapi/sqlalchemy/stac_fastapi/sqlalchemy/extensions/query.py
+++ b/stac_fastapi/sqlalchemy/stac_fastapi/sqlalchemy/extensions/query.py
@@ -66,6 +66,15 @@ class Queryables(str, AutoValueEnum):
     dtype = "cog:dtype"
     foo = "foo"
 
+    def __str__(self) -> str:
+        """Return the Queryable's value as its __str__.
+
+        Python 3.11 changed the default __str__ behavior for Enums, and since we
+        can't use StrEnum (it was introduced in 3.11), we need to define our
+        expected behavior explicitly.
+        """
+        return self.value
+
 
 @dataclass
 class QueryableTypes: