diff --git a/spectacles/cli.py b/spectacles/cli.py
index 97388064..1e3de917 100644
--- a/spectacles/cli.py
+++ b/spectacles/cli.py
@@ -35,6 +35,10 @@
 
 __version__ = importlib.metadata.version("spectacles")
 
+# How long to wait when the network is inactive
+# https://www.python-httpx.org/advanced/timeouts/#fine-tuning-the-configuration
+DEFAULT_HTTP_TIMEOUT = httpx.Timeout(30)
+
 
 class ConfigFileAction(argparse.Action):
     """Parses an arbitrary config file and assigns its values as arg defaults."""
@@ -791,7 +795,7 @@ async def run_connect(
 ) -> None:
     """Tests the connection and credentials for the Looker API."""
     # Don't trust env to ignore .netrc credentials
-    async_client = httpx.AsyncClient(trust_env=False)
+    async_client = httpx.AsyncClient(timeout=DEFAULT_HTTP_TIMEOUT, trust_env=False)
     try:
         LookerClient(
             async_client, base_url, client_id, client_secret, port, api_version
@@ -816,7 +820,7 @@ async def run_lookml(
     timeout: int,
 ) -> None:
     # Don't trust env to ignore .netrc credentials
-    async_client = httpx.AsyncClient(trust_env=False)
+    async_client = httpx.AsyncClient(timeout=DEFAULT_HTTP_TIMEOUT, trust_env=False)
     try:
         client = LookerClient(
             async_client, base_url, client_id, client_secret, port, api_version
@@ -875,7 +879,7 @@ async def run_content(
     use_personal_branch: bool,
 ) -> None:
     # Don't trust env to ignore .netrc credentials
-    async_client = httpx.AsyncClient(trust_env=False)
+    async_client = httpx.AsyncClient(timeout=DEFAULT_HTTP_TIMEOUT, trust_env=False)
     try:
         client = LookerClient(
             async_client, base_url, client_id, client_secret, port, api_version
@@ -936,7 +940,7 @@ async def run_assert(
     concurrency: int,
 ) -> None:
     # Don't trust env to ignore .netrc credentials
-    async_client = httpx.AsyncClient(trust_env=False)
+    async_client = httpx.AsyncClient(timeout=DEFAULT_HTTP_TIMEOUT, trust_env=False)
     try:
         client = LookerClient(
             async_client, base_url, client_id, client_secret, port, api_version
@@ -999,7 +1003,7 @@ async def run_sql(
 ) -> None:
     """Runs and validates the SQL for each selected LookML dimension."""
     # Don't trust env to ignore .netrc credentials
-    async_client = httpx.AsyncClient(trust_env=False)
+    async_client = httpx.AsyncClient(timeout=DEFAULT_HTTP_TIMEOUT, trust_env=False)
     try:
         client = LookerClient(
             async_client, base_url, client_id, client_secret, port, api_version