diff --git a/ethers-solc/src/compile/mod.rs b/ethers-solc/src/compile/mod.rs
index 6c31a0b9f..57665002e 100644
--- a/ethers-solc/src/compile/mod.rs
+++ b/ethers-solc/src/compile/mod.rs
@@ -224,7 +224,7 @@ impl Solc {
 
     /// Returns the list of all versions that are available to download and marking those which are
     /// already installed.
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn all_versions() -> Vec<SolcVersion> {
         let mut all_versions = Self::installed_versions();
         let mut uniques = all_versions
@@ -285,7 +285,7 @@ impl Solc {
     /// to build it, and returns it.
     ///
     /// If the required compiler version is not installed, it also proceeds to install it.
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn detect_version(source: &Source) -> Result<Version> {
         // detects the required solc version
         let sol_version = Self::source_version_req(source)?;
@@ -296,7 +296,7 @@ impl Solc {
     /// used to build it, and returns it.
     ///
     /// If the required compiler version is not installed, it also proceeds to install it.
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn ensure_installed(sol_version: &VersionReq) -> Result<Version> {
         #[cfg(any(test, feature = "tests"))]
         let _lock = take_solc_installer_lock();
@@ -371,7 +371,7 @@ impl Solc {
     }
 
     /// Blocking version of `Self::install`
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn blocking_install(version: &Version) -> std::result::Result<Self, svm::SolcVmError> {
         tracing::trace!("blocking installing solc version \"{}\"", version);
         crate::report::solc_installation_start(version);
@@ -389,7 +389,7 @@ impl Solc {
 
     /// Verify that the checksum for this version of solc is correct. We check against the SHA256
     /// checksum from the build information published by binaries.soliditylang
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn verify_checksum(&self) -> Result<()> {
         let version = self.version_short()?;
         let mut version_path = svm::version_path(version.to_string().as_str());
@@ -733,7 +733,7 @@ mod tests {
 
     #[test]
     // This test might be a bit hard to maintain
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     fn test_detect_version() {
         for (pragma, expected) in [
             // pinned
diff --git a/ethers-solc/src/compile/project.rs b/ethers-solc/src/compile/project.rs
index 545cfd2e5..cfb8061c8 100644
--- a/ethers-solc/src/compile/project.rs
+++ b/ethers-solc/src/compile/project.rs
@@ -140,7 +140,7 @@ impl<'a, T: ArtifactOutput> ProjectCompiler<'a, T> {
     /// let project = Project::builder().build().unwrap();
     /// let output = project.compile().unwrap();
     /// ```
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn new(project: &'a Project<T>) -> Result<Self> {
         Self::with_sources(project, project.paths.read_input_files()?)
     }
@@ -151,7 +151,7 @@ impl<'a, T: ArtifactOutput> ProjectCompiler<'a, T> {
     ///
     /// Multiple (`Solc` -> `Sources`) pairs can be compiled in parallel if the `Project` allows
     /// multiple `jobs`, see [`crate::Project::set_solc_jobs()`].
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn with_sources(project: &'a Project<T>, sources: Sources) -> Result<Self> {
         let graph = Graph::resolve_sources(&project.paths, sources)?;
         let (versions, edges) = graph.into_sources_by_version(project.offline)?;
diff --git a/ethers-solc/src/lib.rs b/ethers-solc/src/lib.rs
index dd879d6ba..c2fcd7058 100644
--- a/ethers-solc/src/lib.rs
+++ b/ethers-solc/src/lib.rs
@@ -209,7 +209,7 @@ impl<T: ArtifactOutput> Project<T> {
         let sources = self.paths.read_input_files()?;
         tracing::trace!("found {} sources to compile: {:?}", sources.len(), sources.keys());
 
-        #[cfg(all(feature = "svm-solc", feature = "async"))]
+        #[cfg(all(feature = "svm-solc"))]
         if self.auto_detect {
             tracing::trace!("using solc auto detection to compile sources");
             return self.svm_compile(sources)
@@ -243,7 +243,7 @@ impl<T: ArtifactOutput> Project<T> {
     /// let output = project.svm_compile(sources).unwrap();
     /// # }
     /// ```
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn svm_compile(&self, sources: Sources) -> Result<ProjectCompileOutput<T>> {
         project::ProjectCompiler::with_sources(self, sources)?.compile()
     }
@@ -260,7 +260,7 @@ impl<T: ArtifactOutput> Project<T> {
     /// let output = project.compile_file("example/Greeter.sol").unwrap();
     /// # }
     /// ```
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn compile_file(&self, file: impl Into<PathBuf>) -> Result<ProjectCompileOutput<T>> {
         let file = file.into();
         let source = Source::read(&file)?;
@@ -282,7 +282,7 @@ impl<T: ArtifactOutput> Project<T> {
     ///     ).unwrap();
     /// # }
     /// ```
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn compile_files<P, I>(&self, files: I) -> Result<ProjectCompileOutput<T>>
     where
         I: IntoIterator<Item = P>,
@@ -321,7 +321,7 @@ impl<T: ArtifactOutput> Project<T> {
     ///     ).unwrap();
     /// # }
     /// ```
-    #[cfg(all(feature = "svm-solc", feature = "async"))]
+    #[cfg(all(feature = "svm-solc"))]
     pub fn compile_sparse<F: FileFilter + 'static>(
         &self,
         filter: F,
@@ -807,7 +807,7 @@ impl<T: ArtifactOutput> ArtifactOutput for Project<T> {
 }
 
 #[cfg(test)]
-#[cfg(all(feature = "svm-solc", feature = "async"))]
+#[cfg(all(feature = "svm-solc"))]
 mod tests {
     use crate::remappings::Remapping;
 
diff --git a/ethers-solc/src/resolver/mod.rs b/ethers-solc/src/resolver/mod.rs
index 02debcfb4..b4c6ed7ff 100644
--- a/ethers-solc/src/resolver/mod.rs
+++ b/ethers-solc/src/resolver/mod.rs
@@ -380,7 +380,7 @@ impl Graph {
     }
 }
 
-#[cfg(all(feature = "svm-solc", feature = "async"))]
+#[cfg(all(feature = "svm-solc"))]
 impl Graph {
     /// Consumes the nodes of the graph and returns all input files together with their appropriate
     /// version and the edges of the graph
@@ -689,14 +689,14 @@ impl<'a> Iterator for NodesIter<'a> {
 }
 
 /// Container type for solc versions and their compatible sources
-#[cfg(all(feature = "svm-solc", feature = "async"))]
+#[cfg(all(feature = "svm-solc"))]
 #[derive(Debug)]
 pub struct VersionedSources {
     inner: HashMap<crate::SolcVersion, Sources>,
     offline: bool,
 }
 
-#[cfg(all(feature = "svm-solc", feature = "async"))]
+#[cfg(all(feature = "svm-solc"))]
 impl VersionedSources {
     /// Resolves or installs the corresponding `Solc` installation.
     pub fn get(