diff --git a/dev-lang/swift/swift-6.0.1-r1.ebuild b/dev-lang/swift/swift-6.0.1-r1.ebuild
index 86dc9abab2..672e8c12a6 100644
--- a/dev-lang/swift/swift-6.0.1-r1.ebuild
+++ b/dev-lang/swift/swift-6.0.1-r1.ebuild
@@ -93,6 +93,7 @@ BDEPEND="
 	>=dev-util/patchelf-0.18
 	>=dev-vcs/git-2.39
 	>=sys-apps/coreutils-9
+	>=sys-devel/gcc-11
 	>=sys-libs/ncurses-6
 	>=sys-libs/zlib-1.3
 	|| (
@@ -109,18 +110,6 @@ BDEPEND="
 	' python3_{12..13})
 "
 
-# Swift 6 upstream currently doesn't build with oneTBB installed because Swift's
-# `libstdcxx.h` includes `<execution>`, which, in combination with recent
-# `libstdc++` versions, causes `tbb/execution` to get picked up; this results in
-# a circular dependency back on the stdlib, failing the build.
-#
-# See:
-# * https://bugs.gentoo.org/947141
-# * https://github.com/swiftlang/swift/issues/76166
-BDEPEND+="
-	!!dev-cpp/tbb
-"
-
 # Adapted from `flag-o-matic.eclass`'s `raw-ldflags`: turns GCC-style flags
 # (`-Wl,-foo`) into Clang-style flags (`-Xlinker -foo`).
 clang-ldflags() {
diff --git a/dev-lang/swift/swift-6.0.1.ebuild b/dev-lang/swift/swift-6.0.1.ebuild
index 085c043de8..630ea1e18d 100644
--- a/dev-lang/swift/swift-6.0.1.ebuild
+++ b/dev-lang/swift/swift-6.0.1.ebuild
@@ -92,6 +92,7 @@ BDEPEND="
 	>=dev-util/patchelf-0.18
 	>=dev-vcs/git-2.39
 	>=sys-apps/coreutils-9
+	>=sys-devel/gcc-11
 	>=sys-libs/ncurses-6
 	>=sys-libs/zlib-1.3
 	|| (
@@ -108,18 +109,6 @@ BDEPEND="
 	' python3_{12..13})
 "
 
-# Swift 6 upstream currently doesn't build with oneTBB installed because Swift's
-# `libstdcxx.h` includes `<execution>`, which, in combination with recent
-# `libstdc++` versions, causes `tbb/execution` to get picked up; this results in
-# a circular dependency back on the stdlib, failing the build.
-#
-# See:
-# * https://bugs.gentoo.org/947141
-# * https://github.com/swiftlang/swift/issues/76166
-BDEPEND+="
-	!!dev-cpp/tbb
-"
-
 # Adapted from `flag-o-matic.eclass`'s `raw-ldflags`: turns GCC-style flags
 # (`-Wl,-foo`) into Clang-style flags (`-Xlinker -foo`).
 clang-ldflags() {
diff --git a/dev-lang/swift/swift-6.0.2.ebuild b/dev-lang/swift/swift-6.0.2.ebuild
index 86dc9abab2..672e8c12a6 100644
--- a/dev-lang/swift/swift-6.0.2.ebuild
+++ b/dev-lang/swift/swift-6.0.2.ebuild
@@ -93,6 +93,7 @@ BDEPEND="
 	>=dev-util/patchelf-0.18
 	>=dev-vcs/git-2.39
 	>=sys-apps/coreutils-9
+	>=sys-devel/gcc-11
 	>=sys-libs/ncurses-6
 	>=sys-libs/zlib-1.3
 	|| (
@@ -109,18 +110,6 @@ BDEPEND="
 	' python3_{12..13})
 "
 
-# Swift 6 upstream currently doesn't build with oneTBB installed because Swift's
-# `libstdcxx.h` includes `<execution>`, which, in combination with recent
-# `libstdc++` versions, causes `tbb/execution` to get picked up; this results in
-# a circular dependency back on the stdlib, failing the build.
-#
-# See:
-# * https://bugs.gentoo.org/947141
-# * https://github.com/swiftlang/swift/issues/76166
-BDEPEND+="
-	!!dev-cpp/tbb
-"
-
 # Adapted from `flag-o-matic.eclass`'s `raw-ldflags`: turns GCC-style flags
 # (`-Wl,-foo`) into Clang-style flags (`-Xlinker -foo`).
 clang-ldflags() {
diff --git a/dev-lang/swift/swift-6.0.3.ebuild b/dev-lang/swift/swift-6.0.3.ebuild
index 86dc9abab2..672e8c12a6 100644
--- a/dev-lang/swift/swift-6.0.3.ebuild
+++ b/dev-lang/swift/swift-6.0.3.ebuild
@@ -93,6 +93,7 @@ BDEPEND="
 	>=dev-util/patchelf-0.18
 	>=dev-vcs/git-2.39
 	>=sys-apps/coreutils-9
+	>=sys-devel/gcc-11
 	>=sys-libs/ncurses-6
 	>=sys-libs/zlib-1.3
 	|| (
@@ -109,18 +110,6 @@ BDEPEND="
 	' python3_{12..13})
 "
 
-# Swift 6 upstream currently doesn't build with oneTBB installed because Swift's
-# `libstdcxx.h` includes `<execution>`, which, in combination with recent
-# `libstdc++` versions, causes `tbb/execution` to get picked up; this results in
-# a circular dependency back on the stdlib, failing the build.
-#
-# See:
-# * https://bugs.gentoo.org/947141
-# * https://github.com/swiftlang/swift/issues/76166
-BDEPEND+="
-	!!dev-cpp/tbb
-"
-
 # Adapted from `flag-o-matic.eclass`'s `raw-ldflags`: turns GCC-style flags
 # (`-Wl,-foo`) into Clang-style flags (`-Xlinker -foo`).
 clang-ldflags() {