diff --git a/.github/workflows/ci-tempo.yml b/.github/workflows/ci-tempo.yml
index 06451b8428ea6..56e66a3b5a16f 100644
--- a/.github/workflows/ci-tempo.yml
+++ b/.github/workflows/ci-tempo.yml
@@ -59,6 +59,14 @@ jobs:
           cargo build --profile dev --locked -p forge -p cast -p anvil -p chisel
           echo "${{ github.workspace }}/target/debug" >> "$GITHUB_PATH"
 
+      - name: Check Tempo fork schedule compatibility
+        env:
+          TEMPO_MAINNET_RPC_URL: ${{ secrets.TEMPO_MAINNET_RPC_URL }}
+          TEMPO_TESTNET_RPC_URL: ${{ secrets.TEMPO_TESTNET_RPC_URL }}
+          TEMPO_DEVNET_RPC_URL: ${{ secrets.TEMPO_DEVNET_RPC_URL }}
+        run: |
+          cargo test --locked -p cast --test cli tempo_fork_schedule_parses_configured_rpcs -- --exact --nocapture
+
       # TODO: re-enable once devnet is up and stable
       # - name: Run Tempo check on devnet
       #   if: |
diff --git a/Cargo.lock b/Cargo.lock
index 71d56653d7a20..6996d21b881d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1194,7 +1194,7 @@ version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -1218,7 +1218,7 @@ checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -3043,7 +3043,7 @@ dependencies = [
  "terminfo",
  "thiserror 2.0.18",
  "which",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -3196,7 +3196,7 @@ version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "faf9468729b8cbcea668e36183cb69d317348c2e08e994829fb56ebfdfbaac34"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -4000,7 +4000,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -4305,7 +4305,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -5062,6 +5062,7 @@ dependencies = [
  "foundry-common-fmt",
  "foundry-compilers",
  "foundry-config",
+ "foundry-evm-hardforks",
  "foundry-wallets",
  "futures",
  "itertools 0.14.0",
@@ -6643,7 +6644,7 @@ checksum = "3640c1c38b8e4e43584d8df18be5fc6b0aa314ce6ebf51b53313d4306cca8e46"
 dependencies = [
  "hermit-abi",
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -7590,7 +7591,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -8742,7 +8743,7 @@ dependencies = [
  "once_cell",
  "socket2",
  "tracing",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -10003,7 +10004,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -10062,7 +10063,7 @@ dependencies = [
  "security-framework",
  "security-framework-sys",
  "webpki-root-certs",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -10776,7 +10777,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -11303,13 +11304,13 @@ dependencies = [
  "getrandom 0.4.2",
  "once_cell",
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "tempo-alloy"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-consensus",
  "alloy-contract",
@@ -11336,7 +11337,7 @@ dependencies = [
 [[package]]
 name = "tempo-chainspec"
 version = "1.5.3"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-eips 2.0.1",
  "alloy-evm",
@@ -11355,7 +11356,7 @@ dependencies = [
 [[package]]
 name = "tempo-consensus"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-consensus",
  "alloy-evm",
@@ -11373,7 +11374,7 @@ dependencies = [
 [[package]]
 name = "tempo-contracts"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-contract",
  "alloy-primitives",
@@ -11384,7 +11385,7 @@ dependencies = [
 [[package]]
 name = "tempo-evm"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-consensus",
  "alloy-evm",
@@ -11411,7 +11412,7 @@ dependencies = [
 [[package]]
 name = "tempo-precompiles"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy",
  "alloy-evm",
@@ -11431,7 +11432,7 @@ dependencies = [
 [[package]]
 name = "tempo-precompiles-macros"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy",
  "proc-macro2",
@@ -11442,7 +11443,7 @@ dependencies = [
 [[package]]
 name = "tempo-primitives"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-consensus",
  "alloy-eips 2.0.1",
@@ -11473,7 +11474,7 @@ dependencies = [
 [[package]]
 name = "tempo-revm"
 version = "1.6.0"
-source = "git+https://github.com/tempoxyz/tempo?rev=1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69#1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69"
+source = "git+https://github.com/tempoxyz/tempo?rev=8bd4d01d37e3cc324030baacbce2da0862d7735a#8bd4d01d37e3cc324030baacbce2da0862d7735a"
 dependencies = [
  "alloy-consensus",
  "alloy-evm",
@@ -11510,7 +11511,7 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8c27177b12a6399ffc08b98f76f7c9a1f4fe9fc967c784c5a071fa8d93cf7e1"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -11520,7 +11521,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "230a1b821ccbd75b185820a1f1ff7b14d21da1e442e22c0863ea5f08771a8874"
 dependencies = [
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -12766,7 +12767,7 @@ dependencies = [
  "watchexec-events",
  "watchexec-signals",
  "watchexec-supervisor",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -12916,7 +12917,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index c27286e7d6ba0..c412dad16366c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -515,17 +515,17 @@ mpp = { git = "https://github.com/tempoxyz/mpp-rs", rev = "554d20112eb014bd223d5
     "reqwest-rustls-tls",
     "ws",
 ] }
-tempo-chainspec = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69", default-features = false }
-tempo-primitives = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69", default-features = false, features = [
+tempo-chainspec = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a", default-features = false }
+tempo-primitives = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a", default-features = false, features = [
     "serde",
 ] }
-tempo-alloy = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69", default-features = false }
-tempo-evm = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69", default-features = false }
-tempo-revm = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69", default-features = false, features = [
+tempo-alloy = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a", default-features = false }
+tempo-evm = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a", default-features = false }
+tempo-revm = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a", default-features = false, features = [
     "serde",
 ] }
-tempo-contracts = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69" }
-tempo-precompiles = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69" }
+tempo-contracts = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a" }
+tempo-precompiles = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a" }
 
 ## Pinned dependencies. Enabled for the workspace in crates/test-utils.
 
@@ -607,9 +607,9 @@ alloy-op-hardforks = { git = "https://github.com/ethereum-optimism/optimism", re
 # foundry-fork-db = { git = "https://github.com/foundry-rs/foundry-core", rev = "2f90eb86d4549fa15a8cc2d99bfc1039bc083977" }
 
 ## tempo — unify crates.io versions (pulled by mpp) with git rev
-tempo-primitives = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69" }
-tempo-alloy = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69" }
-tempo-contracts = { git = "https://github.com/tempoxyz/tempo", rev = "1e5a82dff207e2cbd6cecdcfb8ff3cd2e39baa69" }
+tempo-primitives = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a" }
+tempo-alloy = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a" }
+tempo-contracts = { git = "https://github.com/tempoxyz/tempo", rev = "8bd4d01d37e3cc324030baacbce2da0862d7735a" }
 
 # solar
 solar = { package = "solar-compiler", git = "https://github.com/paradigmxyz/solar", rev = "530f129" }
diff --git a/crates/cast/tests/cli/main.rs b/crates/cast/tests/cli/main.rs
index da33a34d849db..ad4dd1326642e 100644
--- a/crates/cast/tests/cli/main.rs
+++ b/crates/cast/tests/cli/main.rs
@@ -9,6 +9,7 @@ use alloy_rpc_types::{Authorization, BlockNumberOrTag, Index, TransactionRequest
 use alloy_signer::Signer;
 use alloy_signer_local::PrivateKeySigner;
 use anvil::NodeConfig;
+use eyre::{WrapErr, ensure, eyre};
 use foundry_test_utils::{
     rpc::{
         next_etherscan_api_key, next_http_archive_rpc_url, next_http_rpc_endpoint,
@@ -18,8 +19,9 @@ use foundry_test_utils::{
     str,
     util::OutputExt,
 };
+use serde::Deserialize;
 use serde_json::json;
-use std::{fs, path::Path, str::FromStr};
+use std::{env, fs, path::Path, str::FromStr};
 
 #[macro_use]
 extern crate foundry_test_utils;
diff --git a/crates/common/Cargo.toml b/crates/common/Cargo.toml
index 51115fb4a0bae..7fd94c07242e8 100644
--- a/crates/common/Cargo.toml
+++ b/crates/common/Cargo.toml
@@ -92,6 +92,7 @@ chrono.workspace = true
 vergen = { workspace = true, features = ["build", "emit_and_set"] }
 
 [dev-dependencies]
+foundry-evm-hardforks.workspace = true
 tokio = { workspace = true, features = ["rt-multi-thread", "macros"] }
 axum = { workspace = true }
 tempfile.workspace = true
diff --git a/crates/common/src/tempo/mod.rs b/crates/common/src/tempo/mod.rs
index ef7be1b8e189e..ec51dc607b5ab 100644
--- a/crates/common/src/tempo/mod.rs
+++ b/crates/common/src/tempo/mod.rs
@@ -3,6 +3,9 @@
 mod keystore;
 pub use keystore::*;
 
+#[cfg(test)]
+mod tests;
+
 /// Conservative gas buffer for browser wallet transactions on Tempo chains.
 ///
 /// Browser wallets may sign with P256 or WebAuthn instead of secp256k1, which costs more gas
diff --git a/crates/common/src/tempo/tests.rs b/crates/common/src/tempo/tests.rs
new file mode 100644
index 0000000000000..19087a93a9e21
--- /dev/null
+++ b/crates/common/src/tempo/tests.rs
@@ -0,0 +1,55 @@
+use alloy_provider::{Provider, ProviderBuilder};
+use eyre::WrapErr;
+use foundry_evm_hardforks::TempoHardfork;
+use serde::Deserialize;
+use std::env;
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct TempoForkSchedule {
+    schedule: Vec<ForkInfo>,
+    #[allow(dead_code)]
+    active: String,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct ForkInfo {
+    name: String,
+}
+
+async fn check_fork_schedule(rpc_url: &str) -> eyre::Result<()> {
+    let provider = ProviderBuilder::new().connect_http(rpc_url.parse()?);
+    let schedule: TempoForkSchedule = provider.raw_request("tempo_forkSchedule".into(), ()).await?;
+    for fork in &schedule.schedule {
+        fork.name.parse::<TempoHardfork>()?;
+    }
+    Ok(())
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn test_fork_schedule_parses_configured_rpcs() -> eyre::Result<()> {
+    let mut checked_any = false;
+
+    for (network, env_key) in [
+        ("mainnet", "TEMPO_MAINNET_RPC_URL"),
+        ("testnet", "TEMPO_TESTNET_RPC_URL"),
+        ("devnet", "TEMPO_DEVNET_RPC_URL"),
+    ] {
+        let rpc_url = match env::var(env_key) {
+            Ok(url) if !url.is_empty() => url,
+            _ => continue,
+        };
+        checked_any = true;
+
+        check_fork_schedule(&rpc_url)
+            .await
+            .wrap_err_with(|| format!("[{network}] {env_key}={rpc_url}"))?;
+    }
+
+    if !checked_any {
+        eprintln!("Missing Tempo RPC env vars. Skipping Tempo fork schedule compatibility test.");
+    }
+
+    Ok(())
+}