diff --git a/ci/x86_64-linux-debug.sh b/ci/x86_64-linux-debug.sh
index 3ae72f7ef5..b72e72ae24 100755
--- a/ci/x86_64-linux-debug.sh
+++ b/ci/x86_64-linux-debug.sh
@@ -58,6 +58,7 @@ stage3-debug/bin/zig fmt --check .. \
 stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf
 
 stage3-debug/bin/zig build test docs \
+  --maxrss 21000000000 \
   -fqemu \
   -fwasmtime \
   -Dstatic-llvm \
diff --git a/ci/x86_64-linux-release.sh b/ci/x86_64-linux-release.sh
index f8b94addcc..4351707864 100755
--- a/ci/x86_64-linux-release.sh
+++ b/ci/x86_64-linux-release.sh
@@ -59,6 +59,7 @@ stage3-release/bin/zig fmt --check .. \
 stage3-release/bin/zig build -Dtarget=arm-linux-musleabihf
 
 stage3-release/bin/zig build test docs \
+  --maxrss 21000000000 \
   -fqemu \
   -fwasmtime \
   -Dstatic-llvm \