diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3e05f11d8..2a4e68cf8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,11 +22,11 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
-        rust: ["stable", "1.87"]
+        rust: ["stable", "1.88"]
         flags: ["", "--all-features"]
         exclude:
           # Skip because some features have higher MSRV.
-          - rust: "1.87" # MSRV
+          - rust: "1.88" # MSRV
             flags: "--all-features"
     steps:
       - uses: actions/checkout@v4
diff --git a/Cargo.toml b/Cargo.toml
index 9b595ad1d..3862c6c22 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "2"
 [workspace.package]
 authors = ["Foundry Maintainers"]
 version = "0.17.4"
-rust-version = "1.87"
+rust-version = "1.88"
 readme = "README.md"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/foundry-rs/compilers"
@@ -54,8 +54,8 @@ semver = { version = "1.0", features = ["serde"] }
 serde = { version = "1", features = ["derive", "rc"] }
 serde_json = "1.0"
 similar-asserts = "1"
-solar-parse = { version = "=0.1.4", default-features = false }
-solar-sema = { version = "=0.1.4", default-features = false }
+solar-parse = { version = "=0.1.5", default-features = false }
+solar-sema = { version = "=0.1.5", default-features = false }
 svm = { package = "svm-rs", version = "0.5", default-features = false }
 tempfile = "3.9"
 thiserror = "2"
@@ -68,3 +68,9 @@ futures-util = "0.3"
 tokio = { version = "1.35", features = ["rt-multi-thread"] }
 
 snapbox = "0.6.9"
+
+# [patch.crates-io]
+# solar-parse = { git = "https://github.com/paradigmxyz/solar", branch = "main" }
+# solar-sema = { git = "https://github.com/paradigmxyz/solar", branch = "main" }
+# solar-ast = { git = "https://github.com/paradigmxyz/solar", branch = "main" }
+# solar-interface = { git = "https://github.com/paradigmxyz/solar", branch = "main" }
diff --git a/README.md b/README.md
index 2b636be64..80b3851d2 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ When updating this, also update:
 - .github/workflows/ci.yml
 -->
 
-The current MSRV (minimum supported rust version) is 1.87.
+The current MSRV (minimum supported rust version) is 1.88.
 
 Note that the MSRV is not increased automatically, and only as part of a minor
 release.
diff --git a/clippy.toml b/clippy.toml
index d946daec3..f3322b5fd 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1 +1 @@
-msrv = "1.87"
+msrv = "1.88"
diff --git a/crates/compilers/src/cache/iface.rs b/crates/compilers/src/cache/iface.rs
index 8f006ef41..ff29be147 100644
--- a/crates/compilers/src/cache/iface.rs
+++ b/crates/compilers/src/cache/iface.rs
@@ -38,7 +38,7 @@ pub(crate) fn interface_representation_ast(
                 let is_exposed = match function.kind {
                     // Function with external or public visibility
                     ast::FunctionKind::Function => {
-                        function.header.visibility >= Some(ast::Visibility::Public)
+                        function.header.visibility.map(|v| *v) >= Some(ast::Visibility::Public)
                     }
                     ast::FunctionKind::Constructor
                     | ast::FunctionKind::Fallback
diff --git a/crates/compilers/src/resolver/parse.rs b/crates/compilers/src/resolver/parse.rs
index 0627bb01c..06c21f95e 100644
--- a/crates/compilers/src/resolver/parse.rs
+++ b/crates/compilers/src/resolver/parse.rs
@@ -272,7 +272,7 @@ fn library_is_inlined(contract: &ast::ItemContract<'_>) -> bool {
         })
         .all(|f| {
             !matches!(
-                f.header.visibility,
+                f.header.visibility.map(|v| *v),
                 Some(ast::Visibility::Public | ast::Visibility::External)
             )
         })