diff --git a/docs/conf.py b/docs/conf.py
index 4064617bb..ef2392b38 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -345,13 +345,13 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    "python": ("http://python.readthedocs.org/en/latest/", None),
-    "google-auth": ("https://google-auth.readthedocs.io/en/stable", None),
+    "python": ("https://python.readthedocs.org/en/latest/", None),
+    "google-auth": ("https://googleapis.dev/python/google-auth/latest/", None),
     "google.api_core": (
         "https://googleapis.dev/python/google-api-core/latest/",
         None,
     ),
-    "grpc": ("https://grpc.io/grpc/python/", None),
+    "grpc": ("https://grpc.github.io/grpc/python/", None),
     "proto-plus": ("https://proto-plus-python.readthedocs.io/en/latest/", None),
 }
 
diff --git a/synth.metadata b/synth.metadata
index be90c87cc..1d3b579ad 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-bigtable.git",
-        "sha": "c9dafa922111eebd2efaa144403a6b1c48b6f9c1"
+        "sha": "39d7c153ffab3f1bc86a6c1b6802d53254df9c52"
       }
     },
     {
@@ -19,14 +19,14 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "ea52b8a0bd560f72f376efcf45197fb7c8869120"
+        "sha": "a073c873f3928c561bdf87fdfbf1d081d1998984"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "ea52b8a0bd560f72f376efcf45197fb7c8869120"
+        "sha": "a073c873f3928c561bdf87fdfbf1d081d1998984"
       }
     }
   ],