diff --git a/crates/anvil/tests/it/fork.rs b/crates/anvil/tests/it/fork.rs
index c9d9b2c80b8fc..526f3263b67f8 100644
--- a/crates/anvil/tests/it/fork.rs
+++ b/crates/anvil/tests/it/fork.rs
@@ -837,7 +837,7 @@ async fn test_reset_fork_on_new_blocks() {
 
     let anvil_provider = handle.http_provider();
     let endpoint = next_http_rpc_endpoint();
-    let provider = Arc::new(get_http_provider(&endpoint));
+    let provider = Arc::new(get_http_provider(&endpoint, false));
 
     let current_block = anvil_provider.get_block_number().await.unwrap();
 
diff --git a/crates/anvil/tests/it/utils.rs b/crates/anvil/tests/it/utils.rs
index 4a82c27745edd..9b79916427d80 100644
--- a/crates/anvil/tests/it/utils.rs
+++ b/crates/anvil/tests/it/utils.rs
@@ -8,7 +8,7 @@ use foundry_common::provider::{
 };
 
 pub fn http_provider(http_endpoint: &str) -> RetryProvider {
-    get_http_provider(http_endpoint)
+    get_http_provider(http_endpoint, false)
 }
 
 pub fn http_provider_with_signer(
diff --git a/crates/cli/src/opts/evm.rs b/crates/cli/src/opts/evm.rs
index e2e22f7d343ff..0193af2c05786 100644
--- a/crates/cli/src/opts/evm.rs
+++ b/crates/cli/src/opts/evm.rs
@@ -40,6 +40,14 @@ use foundry_common::shell;
 #[derive(Clone, Debug, Default, Serialize, Parser)]
 #[command(next_help_heading = "EVM options", about = None, long_about = None)] // override doc
 pub struct EvmArgs {
+    /// Allow insecure RPC connections (accept invalid HTTPS certificates).
+    ///
+    /// When the provider's inner runtime transport variant is HTTP, this configures the reqwest
+    /// client to accept invalid certificates.
+    #[arg(short = 'k', long = "insecure", default_value = "false")]
+    #[serde(rename = "eth_rpc_accept_invalid_certs")]
+    pub accept_invalid_certs: bool,
+
     /// Fetch state over a remote endpoint instead of starting from an empty state.
     ///
     /// If you want to fetch state from a specific block number, see --fork-block-number.
@@ -190,6 +198,10 @@ impl Provider for EvmArgs {
             dict.insert("eth_rpc_url".to_string(), fork_url.clone().into());
         }
 
+        if self.accept_invalid_certs {
+            dict.insert("eth_rpc_accept_invalid_certs".to_string(), self.accept_invalid_certs.into());
+        }
+
         Ok(Map::from([(Config::selected_profile(), dict)]))
     }
 }
diff --git a/crates/common/src/provider/mod.rs b/crates/common/src/provider/mod.rs
index 870c2c24f895f..7caa65198e90b 100644
--- a/crates/common/src/provider/mod.rs
+++ b/crates/common/src/provider/mod.rs
@@ -70,15 +70,15 @@ pub type RetryProviderWithSigner<N = AnyNetwork> = FillProvider<
 /// ```
 #[inline]
 #[track_caller]
-pub fn get_http_provider(builder: impl AsRef<str>) -> RetryProvider {
-    try_get_http_provider(builder).unwrap()
+pub fn get_http_provider(builder: impl AsRef<str>, accept_invalid_certs: bool) -> RetryProvider {
+    try_get_http_provider(builder, accept_invalid_certs).unwrap()
 }
 
 /// Constructs a provider with a 100 millisecond interval poll if it's a localhost URL (most likely
 /// an anvil or other dev node) and with the default, or 7 second otherwise.
 #[inline]
-pub fn try_get_http_provider(builder: impl AsRef<str>) -> Result<RetryProvider> {
-    ProviderBuilder::new(builder.as_ref()).build()
+pub fn try_get_http_provider(builder: impl AsRef<str>, accept_invalid_certs: bool) -> Result<RetryProvider> {
+    ProviderBuilder::new(builder.as_ref()).accept_invalid_certs(accept_invalid_certs).build()
 }
 
 /// Helper type to construct a `RetryProvider`
diff --git a/crates/evm/core/src/backend/mod.rs b/crates/evm/core/src/backend/mod.rs
index 3da6cb45fe657..208dcdee5e955 100644
--- a/crates/evm/core/src/backend/mod.rs
+++ b/crates/evm/core/src/backend/mod.rs
@@ -2044,7 +2044,7 @@ mod tests {
     async fn can_read_write_cache() {
         let Some(endpoint) = ENDPOINT else { return };
 
-        let provider = get_http_provider(endpoint);
+        let provider = get_http_provider(endpoint, false);
 
         let block_num = provider.get_block_number().await.unwrap();
 
diff --git a/crates/evm/core/src/fork/database.rs b/crates/evm/core/src/fork/database.rs
index 6a53a19843b1b..a7b0bfb32bdd8 100644
--- a/crates/evm/core/src/fork/database.rs
+++ b/crates/evm/core/src/fork/database.rs
@@ -278,7 +278,7 @@ mod tests {
     #[tokio::test(flavor = "multi_thread")]
     async fn fork_db_insert_basic_default() {
         let rpc = foundry_test_utils::rpc::next_http_rpc_endpoint();
-        let provider = get_http_provider(rpc.clone());
+        let provider = get_http_provider(rpc.clone(), false);
         let meta = BlockchainDbMeta::new(Default::default(), rpc);
 
         let db = BlockchainDb::new(meta, None);
diff --git a/crates/evm/core/src/fork/multi.rs b/crates/evm/core/src/fork/multi.rs
index d33fcf837105c..871f70de49447 100644
--- a/crates/evm/core/src/fork/multi.rs
+++ b/crates/evm/core/src/fork/multi.rs
@@ -544,6 +544,7 @@ async fn create_fork(mut fork: CreateFork) -> eyre::Result<(ForkId, CreatedFork,
             .maybe_initial_backoff(fork.evm_opts.fork_retry_backoff)
             .maybe_headers(fork.evm_opts.fork_headers.clone())
             .compute_units_per_second(fork.evm_opts.get_compute_units_per_second())
+            .accept_invalid_certs(fork.evm_opts.eth_rpc_accept_invalid_certs)
             .build()?,
     );
 
diff --git a/crates/evm/core/src/opts.rs b/crates/evm/core/src/opts.rs
index 0a517d0c77f92..747b241214b21 100644
--- a/crates/evm/core/src/opts.rs
+++ b/crates/evm/core/src/opts.rs
@@ -82,6 +82,9 @@ pub struct EvmOpts {
 
     /// The CREATE2 deployer's address.
     pub create2_deployer: Address,
+
+    /// Whether to accept invalid certificates for the rpc server.
+    pub eth_rpc_accept_invalid_certs: bool,
 }
 
 impl Default for EvmOpts {
@@ -107,6 +110,7 @@ impl Default for EvmOpts {
             enable_tx_gas_limit: false,
             networks: NetworkConfigs::default(),
             create2_deployer: DEFAULT_CREATE2_DEPLOYER,
+            eth_rpc_accept_invalid_certs: false,
         }
     }
 }
@@ -129,6 +133,7 @@ impl EvmOpts {
     pub async fn fork_evm_env(&self, fork_url: &str) -> eyre::Result<(crate::Env, AnyRpcBlock)> {
         let provider = ProviderBuilder::new(fork_url)
             .compute_units_per_second(self.get_compute_units_per_second())
+            .accept_invalid_certs(self.eth_rpc_accept_invalid_certs)
             .build()?;
         environment(
             &provider,
diff --git a/crates/script/src/broadcast.rs b/crates/script/src/broadcast.rs
index f62387e532d52..f0baa61cc449f 100644
--- a/crates/script/src/broadcast.rs
+++ b/crates/script/src/broadcast.rs
@@ -49,8 +49,9 @@ pub async fn next_nonce(
     caller: Address,
     provider_url: &str,
     block_number: Option<u64>,
+    accept_invalid_certs: bool,
 ) -> eyre::Result<u64> {
-    let provider = try_get_http_provider(provider_url)
+    let provider = try_get_http_provider(provider_url, accept_invalid_certs)
         .wrap_err_with(|| format!("bad fork_url provider: {provider_url}"))?;
 
     let block_id = block_number.map_or(BlockId::latest(), BlockId::number);
@@ -192,7 +193,7 @@ impl BundledState {
             .enumerate()
             .map(|(sequence_idx, sequence)| async move {
                 let rpc_url = sequence.rpc_url();
-                let provider = Arc::new(get_http_provider(rpc_url));
+                let provider = Arc::new(get_http_provider(rpc_url, self.args.evm.accept_invalid_certs));
                 progress_ref
                     .wait_for_pending(
                         sequence_idx,
@@ -268,7 +269,7 @@ impl BundledState {
         for i in 0..self.sequence.sequences().len() {
             let mut sequence = self.sequence.sequences_mut().get_mut(i).unwrap();
 
-            let provider = Arc::new(try_get_http_provider(sequence.rpc_url())?);
+            let provider = Arc::new(try_get_http_provider(sequence.rpc_url(),self.args.evm.accept_invalid_certs)?);
             let already_broadcasted = sequence.receipts.len();
 
             let seq_progress = progress.get_sequence_progress(i, sequence);
diff --git a/crates/script/src/build.rs b/crates/script/src/build.rs
index 9ee4403923e06..79603ca7d67d4 100644
--- a/crates/script/src/build.rs
+++ b/crates/script/src/build.rs
@@ -42,7 +42,7 @@ impl BuildData {
     pub async fn link(self, script_config: &ScriptConfig) -> Result<LinkedBuildData> {
         let create2_deployer = script_config.evm_opts.create2_deployer;
         let can_use_create2 = if let Some(fork_url) = &script_config.evm_opts.fork_url {
-            let provider = try_get_http_provider(fork_url)?;
+            let provider = try_get_http_provider(fork_url, script_config.config.eth_rpc_accept_invalid_certs)?;
             let deployer_code = provider.get_code_at(create2_deployer).await?;
 
             !deployer_code.is_empty()
@@ -260,7 +260,7 @@ impl CompiledState {
             None
         } else {
             let fork_url = self.script_config.evm_opts.fork_url.clone().ok_or_eyre("Missing --fork-url field, if you were trying to broadcast a multi-chain sequence, please use --multi flag")?;
-            let provider = Arc::new(try_get_http_provider(fork_url)?);
+            let provider = Arc::new(try_get_http_provider(fork_url, self.args.evm.accept_invalid_certs)?);
             Some(provider.get_chain_id().await?)
         };
 
diff --git a/crates/script/src/execute.rs b/crates/script/src/execute.rs
index 06a665b86823a..77a8686629a2a 100644
--- a/crates/script/src/execute.rs
+++ b/crates/script/src/execute.rs
@@ -234,9 +234,9 @@ impl RpcData {
     }
 
     /// Checks if all RPCs support EIP-3855. Prints a warning if not.
-    async fn check_shanghai_support(&self) -> Result<()> {
+    async fn check_shanghai_support(&self, accept_invalid_certs: bool) -> Result<()> {
         let chain_ids = self.total_rpcs.iter().map(|rpc| async move {
-            let provider = get_http_provider(rpc);
+            let provider = get_http_provider(rpc, accept_invalid_certs);
             let id = provider.get_chain_id().await.ok()?;
             NamedChain::try_from(id).ok()
         });
@@ -307,7 +307,7 @@ impl ExecutedState {
                 )
             }
         }
-        rpc_data.check_shanghai_support().await?;
+        rpc_data.check_shanghai_support(self.args.evm.accept_invalid_certs).await?;
 
         Ok(PreSimulationState {
             args: self.args,
diff --git a/crates/script/src/lib.rs b/crates/script/src/lib.rs
index 6a90aef307c19..69ab9d4cf1d53 100644
--- a/crates/script/src/lib.rs
+++ b/crates/script/src/lib.rs
@@ -234,6 +234,7 @@ impl ScriptArgs {
         if let Some(sender) = self.maybe_load_private_key()? {
             evm_opts.sender = sender;
         }
+        evm_opts.eth_rpc_accept_invalid_certs = config.eth_rpc_accept_invalid_certs;
 
         let script_config = ScriptConfig::new(config, evm_opts).await?;
 
@@ -243,7 +244,6 @@ impl ScriptArgs {
     /// Executes the script
     pub async fn run_script(self) -> Result<()> {
         trace!(target: "script", "executing script command");
-
         let state = self.preprocess().await?;
         let create2_deployer = state.script_config.evm_opts.create2_deployer;
         let compiled = state.compile()?;
@@ -584,7 +584,7 @@ pub struct ScriptConfig {
 impl ScriptConfig {
     pub async fn new(config: Config, evm_opts: EvmOpts) -> Result<Self> {
         let sender_nonce = if let Some(fork_url) = evm_opts.fork_url.as_ref() {
-            next_nonce(evm_opts.sender, fork_url, evm_opts.fork_block_number).await?
+            next_nonce(evm_opts.sender, fork_url, evm_opts.fork_block_number, config.eth_rpc_accept_invalid_certs).await?
         } else {
             // dapptools compatibility
             1
@@ -595,7 +595,7 @@ impl ScriptConfig {
 
     pub async fn update_sender(&mut self, sender: Address) -> Result<()> {
         self.sender_nonce = if let Some(fork_url) = self.evm_opts.fork_url.as_ref() {
-            next_nonce(sender, fork_url, None).await?
+            next_nonce(sender, fork_url, None, self.config.eth_rpc_accept_invalid_certs).await?
         } else {
             // dapptools compatibility
             1
diff --git a/crates/script/src/providers.rs b/crates/script/src/providers.rs
index 2252010f43d3d..8b30b9a5c2855 100644
--- a/crates/script/src/providers.rs
+++ b/crates/script/src/providers.rs
@@ -17,11 +17,12 @@ impl ProvidersManager {
         &mut self,
         rpc: &str,
         is_legacy: bool,
+        accept_invalid_certs: bool,
     ) -> Result<&ProviderInfo> {
         Ok(match self.inner.entry(rpc.to_string()) {
             Entry::Occupied(entry) => entry.into_mut(),
             Entry::Vacant(entry) => {
-                let info = ProviderInfo::new(rpc, is_legacy).await?;
+                let info = ProviderInfo::new(rpc, is_legacy, accept_invalid_certs).await?;
                 entry.insert(info)
             }
         })
@@ -52,8 +53,8 @@ pub enum GasPrice {
 }
 
 impl ProviderInfo {
-    pub async fn new(rpc: &str, mut is_legacy: bool) -> Result<Self> {
-        let provider = Arc::new(get_http_provider(rpc));
+    pub async fn new(rpc: &str, mut is_legacy: bool, accept_invalid_certs: bool) -> Result<Self> {
+        let provider = Arc::new(get_http_provider(rpc, accept_invalid_certs));
         let chain = provider.get_chain_id().await?;
 
         if let Some(chain) = Chain::from(chain).named() {
diff --git a/crates/script/src/simulate.rs b/crates/script/src/simulate.rs
index 354b4a3dabdf8..266b74f61919a 100644
--- a/crates/script/src/simulate.rs
+++ b/crates/script/src/simulate.rs
@@ -283,7 +283,7 @@ impl FilledTransactionsState {
 
         while let Some(mut tx) = txes_iter.next() {
             let tx_rpc = tx.rpc.to_owned();
-            let provider_info = manager.get_or_init_provider(&tx.rpc, self.args.legacy).await?;
+            let provider_info = manager.get_or_init_provider(&tx.rpc, self.args.legacy, self.args.evm.accept_invalid_certs).await?;
 
             if let Some(tx) = tx.tx_mut().as_unsigned_mut() {
                 // Handles chain specific requirements for unsigned transactions.
diff --git a/crates/test-utils/src/script.rs b/crates/test-utils/src/script.rs
index 2dfd11986d13c..2727d701ad2b8 100644
--- a/crates/test-utils/src/script.rs
+++ b/crates/test-utils/src/script.rs
@@ -64,7 +64,7 @@ impl ScriptTester {
 
         let mut provider = None;
         if let Some(endpoint) = endpoint {
-            provider = Some(get_http_provider(endpoint))
+            provider = Some(get_http_provider(endpoint, false))
         }
 
         Self {