diff --git a/global/overlay/usr/local/bin/run-cosmos b/global/overlay/usr/local/bin/run-cosmos
index 7274b62..268fd6a 100755
--- a/global/overlay/usr/local/bin/run-cosmos
+++ b/global/overlay/usr/local/bin/run-cosmos
@@ -67,14 +67,19 @@ fleetlock_lock() {
         # called.
         fleetlock_enable_unlock_service || return 1
         local fleetlock_group=""
+        local optional_args=()
         # shellcheck source=/dev/null
         . $FLEETLOCK_CONFIG || return 1
         if [ -z "$fleetlock_group" ]; then
             echo "Unable to set fleetlock_group"
             return 1
         fi
+        if [ -n "$fleetlock_lock_timeout" ]; then
+            optional_args+=("--timeout")
+            optional_args+=("$fleetlock_lock_timeout")
+        fi
         echo "Getting fleetlock lock"
-        $FLEETLOCK_TOOL --lock-group "$fleetlock_group" --lock || return 1
+        $FLEETLOCK_TOOL --lock-group "$fleetlock_group" --lock "${optional_args[@]}" || return 1
     fi
     return 0
 }
@@ -82,15 +87,20 @@ fleetlock_lock() {
 fleetlock_unlock() {
     if [ ! -f $FLEETLOCK_DISABLE_FILE ] && [ -f $FLEETLOCK_CONFIG ] && [ -x $FLEETLOCK_TOOL ]; then
         local fleetlock_group=""
+        local optional_args=()
         # shellcheck source=/dev/null
         . $FLEETLOCK_CONFIG || return 1
         if [ -z "$fleetlock_group" ]; then
             echo "Unable to set fleetlock_group"
             return 1
         fi
+        if [ -n "$fleetlock_unlock_timeout" ]; then
+            optional_args+=("--timeout")
+            optional_args+=("$fleetlock_unlock_timeout")
+        fi
         machine_is_healthy || return 1
         echo "Releasing fleetlock lock"
-        $FLEETLOCK_TOOL --lock-group "$fleetlock_group" --unlock || return 1
+        $FLEETLOCK_TOOL --lock-group "$fleetlock_group" --unlock "${optional_args[@]}" || return 1
     fi
     return 0
 }
diff --git a/global/overlay/usr/local/bin/sunet-fleetlock b/global/overlay/usr/local/bin/sunet-fleetlock
index 6f0b557..64effec 100755
--- a/global/overlay/usr/local/bin/sunet-fleetlock
+++ b/global/overlay/usr/local/bin/sunet-fleetlock
@@ -97,7 +97,10 @@ def do_fleetlock_request(
                 timeout=args.request_timeout,
                 auth=("", config[args.lock_group]["password"]),
             )
-        except requests.exceptions.ConnectionError as e:
+        except (
+            requests.exceptions.ConnectionError,
+            requests.exceptions.ReadTimeout,
+        ) as e:
             print(f"POST request failed: {e}")
             time.sleep(retry_sleep_delay)
             continue