diff --git a/Cargo.lock b/Cargo.lock
index 94bece446..25fdf6f27 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2163,7 +2163,7 @@ dependencies = [
 [[package]]
 name = "base-common-chains"
 version = "0.0.0"
-source = "git+https://github.com/base/base.git?rev=401ffe4d60f3d0e9c34168c865521a3b186339df#401ffe4d60f3d0e9c34168c865521a3b186339df"
+source = "git+https://github.com/base/base.git?rev=cc8ee3860973c6a98823c63324e95ad9daf63e1b#cc8ee3860973c6a98823c63324e95ad9daf63e1b"
 dependencies = [
  "alloy-chains",
  "alloy-eips 2.0.5",
@@ -2179,7 +2179,7 @@ dependencies = [
 [[package]]
 name = "base-common-genesis"
 version = "0.0.0"
-source = "git+https://github.com/base/base.git?rev=401ffe4d60f3d0e9c34168c865521a3b186339df#401ffe4d60f3d0e9c34168c865521a3b186339df"
+source = "git+https://github.com/base/base.git?rev=cc8ee3860973c6a98823c63324e95ad9daf63e1b#cc8ee3860973c6a98823c63324e95ad9daf63e1b"
 dependencies = [
  "alloy-chains",
  "alloy-consensus",
@@ -2197,7 +2197,7 @@ dependencies = [
 [[package]]
 name = "base-common-precompiles"
 version = "0.0.0"
-source = "git+https://github.com/base/base.git?rev=401ffe4d60f3d0e9c34168c865521a3b186339df#401ffe4d60f3d0e9c34168c865521a3b186339df"
+source = "git+https://github.com/base/base.git?rev=cc8ee3860973c6a98823c63324e95ad9daf63e1b#cc8ee3860973c6a98823c63324e95ad9daf63e1b"
 dependencies = [
  "alloy-evm",
  "alloy-primitives",
@@ -2212,7 +2212,7 @@ dependencies = [
 [[package]]
 name = "base-precompile-macros"
 version = "0.0.0"
-source = "git+https://github.com/base/base.git?rev=401ffe4d60f3d0e9c34168c865521a3b186339df#401ffe4d60f3d0e9c34168c865521a3b186339df"
+source = "git+https://github.com/base/base.git?rev=cc8ee3860973c6a98823c63324e95ad9daf63e1b#cc8ee3860973c6a98823c63324e95ad9daf63e1b"
 dependencies = [
  "alloy-primitives",
  "proc-macro2",
@@ -2223,7 +2223,7 @@ dependencies = [
 [[package]]
 name = "base-precompile-storage"
 version = "0.0.0"
-source = "git+https://github.com/base/base.git?rev=401ffe4d60f3d0e9c34168c865521a3b186339df#401ffe4d60f3d0e9c34168c865521a3b186339df"
+source = "git+https://github.com/base/base.git?rev=cc8ee3860973c6a98823c63324e95ad9daf63e1b#cc8ee3860973c6a98823c63324e95ad9daf63e1b"
 dependencies = [
  "alloy-evm",
  "alloy-primitives",
diff --git a/crates/evm/networks/Cargo.toml b/crates/evm/networks/Cargo.toml
index 313499dd4..909efa30c 100644
--- a/crates/evm/networks/Cargo.toml
+++ b/crates/evm/networks/Cargo.toml
@@ -29,8 +29,8 @@ alloy-primitives = { workspace = true, features = [
 # github.com/base/base; bump via ./script/bump-base.sh. To iterate against a
 # local base/base checkout instead, uncomment the [patch] block at the bottom
 # of the workspace root Cargo.toml.
-base-common-precompiles = { git = "https://github.com/base/base.git", rev = "401ffe4d60f3d0e9c34168c865521a3b186339df" }
-base-common-chains = { git = "https://github.com/base/base.git", rev = "401ffe4d60f3d0e9c34168c865521a3b186339df" }
+base-common-precompiles = { git = "https://github.com/base/base.git", rev = "cc8ee3860973c6a98823c63324e95ad9daf63e1b" }
+base-common-chains = { git = "https://github.com/base/base.git", rev = "cc8ee3860973c6a98823c63324e95ad9daf63e1b" }
 
 revm = { workspace = true, features = [
     "std",
diff --git a/crates/evm/networks/src/lib.rs b/crates/evm/networks/src/lib.rs
index 7b1f0e89e..356043323 100644
--- a/crates/evm/networks/src/lib.rs
+++ b/crates/evm/networks/src/lib.rs
@@ -16,7 +16,8 @@ use alloy_primitives::{Address, U256, address, keccak256, map::AddressHashMap};
 use base_common_chains::BaseUpgrade;
 use base_common_precompiles::{
     ActivationFeature, ActivationRegistry, ActivationRegistryStorage, B20Factory,
-    B20FactoryStorage, BerylLookup, PolicyRegistryPrecompile, PolicyRegistryStorage,
+    B20FactoryStorage, BerylLookup, NoopPrecompileCallObserver, PolicyRegistryPrecompile,
+    PolicyRegistryStorage,
 };
 use clap::Parser;
 use serde::{Deserialize, Serialize};
@@ -165,10 +166,23 @@ impl NetworkConfigs {
             // upgrade so each B-20 token resolves its logic version per-call
             // (e.g. Stablecoin V1 at Beryl). Pinned to Beryl until `--base-fork`
             // (BOP-428) makes the fork selectable at runtime.
+            //
+            // The factory/policy singletons use `install_with_observer` with a
+            // no-op observer, matching provider.rs; base/base dropped the plain
+            // `install` shims in favour of the observed variants. Metrics
+            // observation is scoped to the B-20 token call path, which anvil
+            // does not wire up, so a no-op observer is correct here.
             let admin = Some(self.base_activation_admin());
-            B20Factory::install(precompiles);
+            B20Factory::install_with_observer(
+                precompiles,
+                BaseUpgrade::Beryl,
+                NoopPrecompileCallObserver,
+            );
             BerylLookup::install(precompiles, BaseUpgrade::Beryl);
-            PolicyRegistryPrecompile::install(precompiles);
+            PolicyRegistryPrecompile::install_with_observer(
+                precompiles,
+                NoopPrecompileCallObserver,
+            );
             ActivationRegistry::install(precompiles, admin);
         }
     }