diff --git a/haystack/nodes/connector/crawler.py b/haystack/nodes/connector/crawler.py
index 16f703d5e1..f89fad0beb 100644
--- a/haystack/nodes/connector/crawler.py
+++ b/haystack/nodes/connector/crawler.py
@@ -13,7 +13,7 @@
     from webdriver_manager.chrome import ChromeDriverManager
     from selenium.webdriver.chrome.service import Service
     from selenium.webdriver.common.by import By
-    from selenium.common.exceptions import StaleElementReferenceException
+    from selenium.common.exceptions import StaleElementReferenceException, WebDriverException
     from selenium import webdriver
 except (ImportError, ModuleNotFoundError) as ie:
     from haystack.utils.import_utils import _optional_component_not_installed
@@ -22,6 +22,7 @@
 
 from haystack.nodes.base import BaseComponent
 from haystack.schema import Document
+from haystack.errors import NodeError
 
 
 logger = logging.getLogger(__name__)
@@ -94,15 +95,15 @@ def __init__(
                 options.add_argument("--no-sandbox")
                 options.add_argument("--disable-dev-shm-usage")
                 self.driver = webdriver.Chrome(service=Service("chromedriver"), options=options)
-            except:
-                raise Exception(
+            except WebDriverException as exc:
+                raise NodeError(
                     """
         \'chromium-driver\' needs to be installed manually when running colab. Follow the below given commands:
                         !apt-get update
                         !apt install chromium-driver
                         !cp /usr/lib/chromium-browser/chromedriver /usr/bin
         If it has already been installed, please check if it has been copied to the right directory i.e. to \'/usr/bin\'"""
-                )
+                ) from exc
         else:
             logger.info("'chrome-driver' will be automatically installed.")
             self.driver = webdriver.Chrome(service=Service(ChromeDriverManager().install()), options=options)
diff --git a/setup.cfg b/setup.cfg
index 68d78abac1..32e7e19e74 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -165,7 +165,7 @@ audio =
 beir =
     beir; platform_system != 'Windows'
 crawler =
-    selenium !=4.1.4  # due to https://github.com/SeleniumHQ/selenium/issues/10612
+    selenium>=4.0.0,!=4.1.4  # Avoid 4.1.4 due to https://github.com/SeleniumHQ/selenium/issues/10612
     webdriver-manager
 preprocessing =
     beautifulsoup4
@@ -188,7 +188,8 @@ ray =
     aiorwlock>=1.3.0,<2
 
 colab =
-    grpcio==1.43.0
+    grpcio==1.47.0
+    requests>=2.25  # Needed to avoid dependency conflict with crawler https://github.com/deepset-ai/haystack/pull/2921
 dev =
     pre-commit
     # Type check