diff --git a/ci/aarch64-linux-debug.sh b/ci/aarch64-linux-debug.sh
index 143dd7c1c9..c2fa4a22c4 100755
--- a/ci/aarch64-linux-debug.sh
+++ b/ci/aarch64-linux-debug.sh
@@ -8,7 +8,7 @@ set -e
 ARCH="$(uname -m)"
 TARGET="$ARCH-linux-musl"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/deps/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/aarch64-linux-release.sh b/ci/aarch64-linux-release.sh
index f6602850a9..0be79548b8 100755
--- a/ci/aarch64-linux-release.sh
+++ b/ci/aarch64-linux-release.sh
@@ -8,7 +8,7 @@ set -e
 ARCH="$(uname -m)"
 TARGET="$ARCH-linux-musl"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/deps/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/aarch64-macos-debug.sh b/ci/aarch64-macos-debug.sh
index 474f0c5cea..94f92c4967 100755
--- a/ci/aarch64-macos-debug.sh
+++ b/ci/aarch64-macos-debug.sh
@@ -9,7 +9,7 @@ set -e
 ZIGDIR="$PWD"
 TARGET="$ARCH-macos-none"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/aarch64-macos-release.sh b/ci/aarch64-macos-release.sh
index dac793075a..e27f062457 100755
--- a/ci/aarch64-macos-release.sh
+++ b/ci/aarch64-macos-release.sh
@@ -9,7 +9,7 @@ set -e
 ZIGDIR="$PWD"
 TARGET="$ARCH-macos-none"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/aarch64-windows.ps1 b/ci/aarch64-windows.ps1
index 44140506a7..9d57c13f3d 100644
--- a/ci/aarch64-windows.ps1
+++ b/ci/aarch64-windows.ps1
@@ -1,5 +1,5 @@
 $TARGET = "$($Env:ARCH)-windows-gnu"
-$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 $MCPU = "baseline"
 $ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
 $PREFIX_PATH = "$(Get-Location)\..\$ZIG_LLVM_CLANG_LLD_NAME"
diff --git a/ci/x86_64-linux-debug.sh b/ci/x86_64-linux-debug.sh
index 1ef4745779..4dbd05fce3 100755
--- a/ci/x86_64-linux-debug.sh
+++ b/ci/x86_64-linux-debug.sh
@@ -8,7 +8,7 @@ set -e
 ARCH="$(uname -m)"
 TARGET="$ARCH-linux-musl"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/deps/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/x86_64-linux-release.sh b/ci/x86_64-linux-release.sh
index d6c0cc5701..9f2df10370 100755
--- a/ci/x86_64-linux-release.sh
+++ b/ci/x86_64-linux-release.sh
@@ -8,7 +8,7 @@ set -e
 ARCH="$(uname -m)"
 TARGET="$ARCH-linux-musl"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/deps/$CACHE_BASENAME"
 ZIG="$PREFIX/bin/zig"
 
diff --git a/ci/x86_64-macos-release.sh b/ci/x86_64-macos-release.sh
index 30b3781915..e3484658af 100755
--- a/ci/x86_64-macos-release.sh
+++ b/ci/x86_64-macos-release.sh
@@ -6,7 +6,7 @@ set -e
 ZIGDIR="$PWD"
 TARGET="$ARCH-macos-none"
 MCPU="baseline"
-CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 PREFIX="$HOME/$CACHE_BASENAME"
 JOBS="-j3"
 ZIG="$PREFIX/bin/zig"
diff --git a/ci/x86_64-windows-debug.ps1 b/ci/x86_64-windows-debug.ps1
index 048ad3f15f..bc24509a54 100644
--- a/ci/x86_64-windows-debug.ps1
+++ b/ci/x86_64-windows-debug.ps1
@@ -1,5 +1,5 @@
 $TARGET = "$($Env:ARCH)-windows-gnu"
-$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 $MCPU = "baseline"
 $ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
 $PREFIX_PATH = "$($Env:USERPROFILE)\$ZIG_LLVM_CLANG_LLD_NAME"
diff --git a/ci/x86_64-windows-release.ps1 b/ci/x86_64-windows-release.ps1
index 965fc4b578..14fb508c1a 100644
--- a/ci/x86_64-windows-release.ps1
+++ b/ci/x86_64-windows-release.ps1
@@ -1,5 +1,5 @@
 $TARGET = "$($Env:ARCH)-windows-gnu"
-$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.14.0-dev.1622+2ac543388"
+$ZIG_LLVM_CLANG_LLD_NAME = "zig+llvm+lld+clang-$TARGET-0.15.0-dev.203+53270f008"
 $MCPU = "baseline"
 $ZIG_LLVM_CLANG_LLD_URL = "https://ziglang.org/deps/$ZIG_LLVM_CLANG_LLD_NAME.zip"
 $PREFIX_PATH = "$($Env:USERPROFILE)\$ZIG_LLVM_CLANG_LLD_NAME"