diff --git a/Example/Tuist/Patches/OpenSwiftUI_SPI-resource-bundle-accessor.patch b/Example/Tuist/Patches/OpenSwiftUI_SPI-resource-bundle-accessor.patch
deleted file mode 100644
index e428b9c28..000000000
--- a/Example/Tuist/Patches/OpenSwiftUI_SPI-resource-bundle-accessor.patch
+++ /dev/null
@@ -1,12 +0,0 @@
---- a/Derived/Sources/TuistBundle+OpenSwiftUI_SPI.h
-+++ b/Derived/Sources/TuistBundle+OpenSwiftUI_SPI.h
-@@ -1 +1,3 @@
-+#if __OBJC__
-+
- #import <Foundation/Foundation.h>
-@@ -13 +15,3 @@
- #endif
-\ No newline at end of file
-+
-+#endif
-\ No newline at end of file
diff --git a/Example/setup.sh b/Example/setup.sh
index 1a4e4e9ea..9b265a28d 100755
--- a/Example/setup.sh
+++ b/Example/setup.sh
@@ -46,10 +46,3 @@ fi
 run_mise install
 run_mise exec -- tuist install
 run_mise exec -- tuist generate --no-open
-
-# Tuist currently injects Objective-C resource accessor headers into every
-# C-family source through GCC_PREFIX_HEADER. Keep the generated header inert
-# for plain C sources until Tuist scopes the injection to Objective-C sources.
-# https://github.com/tuist/tuist/issues/12559
-patch -d "$SCRIPT_DIR/.." -p1 < \
-  "$SCRIPT_DIR/Tuist/Patches/OpenSwiftUI_SPI-resource-bundle-accessor.patch"
diff --git a/Package.resolved b/Package.resolved
index a81354875..aaac3e90b 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,5 +1,5 @@
 {
-  "originHash" : "3482eb6440e1059ead3596c30808f817c4758ff588afaca85b25a988276317ae",
+  "originHash" : "4936af510542c85bcb1667f8d1c18ac48e764fe6b115f9942f7b7f7132d8a84d",
   "pins" : [
     {
       "identity" : "darwinprivateframeworks",
@@ -7,7 +7,7 @@
       "location" : "https://github.com/OpenSwiftUIProject/DarwinPrivateFrameworks.git",
       "state" : {
         "branch" : "main",
-        "revision" : "b7e6ba165f3763dd477f55cc55b4a63f51385571"
+        "revision" : "0cec3b3219dd2d99818e861e3dca7598e7554f98"
       }
     },
     {
@@ -16,7 +16,7 @@
       "location" : "https://github.com/OpenSwiftUIProject/OpenAttributeGraph",
       "state" : {
         "branch" : "main",
-        "revision" : "e3484bf5e6ccb6214a4d88b7846f2bde35af1d19"
+        "revision" : "6a260ef4aa2fd926b0cf34d21d5290921e6e7323"
       }
     },
     {
diff --git a/Package.swift b/Package.swift
index 2370b7bda..58c8b86a2 100644
--- a/Package.swift
+++ b/Package.swift
@@ -222,11 +222,8 @@ var sharedSwiftSettings: [SwiftSetting] = [
     .define("OPENSWIFTUI_RELEASE_\(releaseVersion)"),
     .unsafeFlags(["-Xfrontend", "-experimental-spi-only-imports"]),
     // Swift 6.3.3 crashes while indexing AppKit with the private framework shims.
-    // Tuist used to duplicate unconditional settings into SDK-conditioned OTHER_SWIFT_FLAGS:
-    // https://github.com/tuist/tuist/issues/12377
-    // Fixed by https://github.com/tuist/tuist/pull/12411 in Tuist 4.206.0-canary.16.
-    // FIXME: Keep this unconditional until the project's Tuist version includes that fix.
-    .unsafeFlags(["-index-ignore-system-modules"]),
+    // Keep source indexing enabled while skipping imported system modules.
+    .unsafeFlags(["-index-ignore-system-modules"], .when(platforms: [.macOS])),
 ]
 
 if releaseVersion >= 2021 {
diff --git a/mise.compute.toml b/mise.compute.toml
index 4194f9350..f6b6e1398 100644
--- a/mise.compute.toml
+++ b/mise.compute.toml
@@ -1,5 +1,5 @@
 [tools]
-tuist = "4.203.4"
+tuist = "4.206.0"
 
 [env]
 TUIST_USE_SWIFTERPM=1
diff --git a/mise.toml b/mise.toml
index 8952e958a..a196a3adc 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,5 +1,5 @@
 [tools]
-tuist = "4.203.4"
+tuist = "4.206.0"
 
 [env]
 TUIST_USE_SWIFTERPM=1