diff --git a/ci/aarch64-linux-debug.sh b/ci/aarch64-linux-debug.sh
index 29c815e816..0892840f94 100755
--- a/ci/aarch64-linux-debug.sh
+++ b/ci/aarch64-linux-debug.sh
@@ -51,7 +51,7 @@ stage3-debug/bin/zig build test docs \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
   -Denable-superhtml \
-  --test-timeout 60s
+  --test-timeout 3m
 
 stage3-debug/bin/zig build \
   --prefix stage4-debug \
diff --git a/ci/aarch64-linux-release.sh b/ci/aarch64-linux-release.sh
index 26547d8b41..7b0947d385 100755
--- a/ci/aarch64-linux-release.sh
+++ b/ci/aarch64-linux-release.sh
@@ -51,7 +51,7 @@ stage3-release/bin/zig build test docs \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
   -Denable-superhtml \
-  --test-timeout 60s
+  --test-timeout 3m
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
 stage3-release/bin/zig build \
diff --git a/ci/aarch64-macos-debug.sh b/ci/aarch64-macos-debug.sh
index 4afff42269..93cb68296c 100755
--- a/ci/aarch64-macos-debug.sh
+++ b/ci/aarch64-macos-debug.sh
@@ -47,4 +47,4 @@ stage3-debug/bin/zig build test docs \
   -Dstatic-llvm \
   -Dskip-non-native \
   --search-prefix "$PREFIX" \
-  --test-timeout 60s
+  --test-timeout 2m
diff --git a/ci/aarch64-macos-release.sh b/ci/aarch64-macos-release.sh
index 8ddbe9773d..5a2f344204 100755
--- a/ci/aarch64-macos-release.sh
+++ b/ci/aarch64-macos-release.sh
@@ -47,7 +47,7 @@ stage3-release/bin/zig build test docs \
   -Dstatic-llvm \
   -Dskip-non-native \
   --search-prefix "$PREFIX" \
-  --test-timeout 60s
+  --test-timeout 2m
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
 stage3-release/bin/zig build \
diff --git a/ci/aarch64-windows.ps1 b/ci/aarch64-windows.ps1
index 8720c7004d..610f94a64f 100644
--- a/ci/aarch64-windows.ps1
+++ b/ci/aarch64-windows.ps1
@@ -59,7 +59,7 @@ Write-Output "Main test suite..."
   -Dstatic-llvm `
   -Dskip-non-native `
   -Denable-symlinks-windows `
-  --test-timeout 60s
+  --test-timeout 30m
 CheckLastExitCode
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
diff --git a/ci/loongarch64-linux-debug.sh b/ci/loongarch64-linux-debug.sh
index a2f1126f4f..9757542cbb 100755
--- a/ci/loongarch64-linux-debug.sh
+++ b/ci/loongarch64-linux-debug.sh
@@ -51,7 +51,7 @@ stage3-debug/bin/zig build test docs \
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 2m
+  --test-timeout 4m
 
 stage3-debug/bin/zig build \
   --prefix stage4-debug \
diff --git a/ci/loongarch64-linux-release.sh b/ci/loongarch64-linux-release.sh
index 2cb6229d9b..edb46d8565 100755
--- a/ci/loongarch64-linux-release.sh
+++ b/ci/loongarch64-linux-release.sh
@@ -51,7 +51,7 @@ stage3-release/bin/zig build test docs \
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 2m
+  --test-timeout 4m
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
 stage3-release/bin/zig build \
diff --git a/ci/riscv64-linux-debug.sh b/ci/riscv64-linux-debug.sh
index 84a82be8dc..51e038b369 100755
--- a/ci/riscv64-linux-debug.sh
+++ b/ci/riscv64-linux-debug.sh
@@ -52,4 +52,4 @@ stage3-debug/bin/zig build test-cases test-modules test-unit test-c-abi test-sta
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 2m
+  --test-timeout 4m
diff --git a/ci/riscv64-linux-release.sh b/ci/riscv64-linux-release.sh
index 1aa31a6f8a..1de0335f42 100755
--- a/ci/riscv64-linux-release.sh
+++ b/ci/riscv64-linux-release.sh
@@ -52,4 +52,4 @@ stage3-release/bin/zig build test-cases test-modules test-unit test-c-abi test-s
   -Dtarget=native-native-musl \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 2m
+  --test-timeout 4m
diff --git a/ci/x86_64-freebsd-debug.sh b/ci/x86_64-freebsd-debug.sh
index 9440af5e02..2c8071dfc1 100755
--- a/ci/x86_64-freebsd-debug.sh
+++ b/ci/x86_64-freebsd-debug.sh
@@ -52,7 +52,7 @@ stage3-debug/bin/zig build test docs \
   -Dskip-macos \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 60s
+  --test-timeout 2m
 
 stage3-debug/bin/zig build \
   --prefix stage4-debug \
diff --git a/ci/x86_64-freebsd-release.sh b/ci/x86_64-freebsd-release.sh
index 7f67e757ba..9e0439a33e 100755
--- a/ci/x86_64-freebsd-release.sh
+++ b/ci/x86_64-freebsd-release.sh
@@ -52,7 +52,7 @@ stage3-release/bin/zig build test docs \
   -Dskip-macos \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
-  --test-timeout 60s
+  --test-timeout 2m
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
 stage3-release/bin/zig build \
diff --git a/ci/x86_64-linux-debug-llvm.sh b/ci/x86_64-linux-debug-llvm.sh
index fc6415afdd..b3b1278192 100755
--- a/ci/x86_64-linux-debug-llvm.sh
+++ b/ci/x86_64-linux-debug-llvm.sh
@@ -62,4 +62,4 @@ stage3-debug/bin/zig build test docs \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
   -Denable-superhtml \
-  --test-timeout 6m
+  --test-timeout 12m
diff --git a/ci/x86_64-linux-debug.sh b/ci/x86_64-linux-debug.sh
index c9693bc1a7..868728367a 100755
--- a/ci/x86_64-linux-debug.sh
+++ b/ci/x86_64-linux-debug.sh
@@ -62,4 +62,4 @@ stage3-debug/bin/zig build test docs \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
   -Denable-superhtml \
-  --test-timeout 4m
+  --test-timeout 10m
diff --git a/ci/x86_64-linux-release.sh b/ci/x86_64-linux-release.sh
index 2c2a50c676..78dad0cc1f 100755
--- a/ci/x86_64-linux-release.sh
+++ b/ci/x86_64-linux-release.sh
@@ -64,7 +64,7 @@ stage3-release/bin/zig build test docs \
   --search-prefix "$PREFIX" \
   --zig-lib-dir "$PWD/../lib" \
   -Denable-superhtml \
-  --test-timeout 6m
+  --test-timeout 12m
 
 # Ensure that stage3 and stage4 are byte-for-byte identical.
 stage3-release/bin/zig build \