diff --git a/build-node.sh b/build-node.sh
index 536f781..56efea6 100755
--- a/build-node.sh
+++ b/build-node.sh
@@ -1,17 +1,12 @@
 #!/bin/sh
 
-VERSION=${1-:"v8.6.0"}
+VERSION=${1-:"v12.18.2"}
 
-CURRENT_MAC_VERSION="10.13"
+CURRENT_MAC_VERSION="10.15"
 
 ADDITIONAL_MAC_VERSIONS=(
-  10.6
-  10.7
-  10.8
-  10.9
-  10.10
-  10.11
-  10.12
+  10.13
+  10.14
 )
 
 # ARCHES and DESTINATION_DIRECTORIES must be the same length.
diff --git a/build-support/bin/node/linux/x86_64/v12.18.2/build.sh b/build-support/bin/node/linux/x86_64/v12.18.2/build.sh
new file mode 100644
index 0000000..c529f46
--- /dev/null
+++ b/build-support/bin/node/linux/x86_64/v12.18.2/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -exu
+
+# Build Node.js for just this version and architecture.
+NODE_VERSION="v12.18.2"
+ARCH="linux-x64"
+
+tarball_name="node-${NODE_VERSION}-${ARCH}"
+
+# Make it easy to use gnu-tar on Mac, since the default bsdtar that comes with OS X
+# is not compatible with gnu-tar.
+TAR_CMD="${TAR_CMD:-tar}"
+echo "Using tar command '${TAR_CMD}'"
+
+curl -O https://nodejs.org/dist/${NODE_VERSION}/${tarball_name}.tar.gz
+
+# Unpack and repack
+rm -rf unpack && mkdir unpack && \
+${TAR_CMD} -xzf ${tarball_name}.tar.gz -C unpack && \
+rm ${tarball_name}.tar.gz && \
+mv unpack/${tarball_name} unpack/node && \
+${TAR_CMD} -czf node.tar.gz -C unpack node/ && \
+rm -rf unpack
diff --git a/build-support/bin/node/mac/10.13/v12.18.2/build.sh b/build-support/bin/node/mac/10.13/v12.18.2/build.sh
new file mode 100644
index 0000000..3f9948d
--- /dev/null
+++ b/build-support/bin/node/mac/10.13/v12.18.2/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -exu
+
+# Build Node.js for just this version and architecture.
+NODE_VERSION="v12.18.2"
+ARCH="darwin-x64"
+
+tarball_name="node-${NODE_VERSION}-${ARCH}"
+
+# Make it easy to use gnu-tar on Mac, since the default bsdtar that comes with OS X
+# is not compatible with gnu-tar.
+TAR_CMD="${TAR_CMD:-tar}"
+echo "Using tar command '${TAR_CMD}'"
+
+curl -O https://nodejs.org/dist/${NODE_VERSION}/${tarball_name}.tar.gz
+
+# Unpack and repack
+rm -rf unpack && mkdir unpack && \
+${TAR_CMD} -xzf ${tarball_name}.tar.gz -C unpack && \
+rm ${tarball_name}.tar.gz && \
+mv unpack/${tarball_name} unpack/node && \
+${TAR_CMD} -czf node.tar.gz -C unpack node/ && \
+rm -rf unpack
diff --git a/build-support/bin/node/mac/10.14/v12.18.2/build.sh b/build-support/bin/node/mac/10.14/v12.18.2/build.sh
new file mode 100644
index 0000000..3f9948d
--- /dev/null
+++ b/build-support/bin/node/mac/10.14/v12.18.2/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -exu
+
+# Build Node.js for just this version and architecture.
+NODE_VERSION="v12.18.2"
+ARCH="darwin-x64"
+
+tarball_name="node-${NODE_VERSION}-${ARCH}"
+
+# Make it easy to use gnu-tar on Mac, since the default bsdtar that comes with OS X
+# is not compatible with gnu-tar.
+TAR_CMD="${TAR_CMD:-tar}"
+echo "Using tar command '${TAR_CMD}'"
+
+curl -O https://nodejs.org/dist/${NODE_VERSION}/${tarball_name}.tar.gz
+
+# Unpack and repack
+rm -rf unpack && mkdir unpack && \
+${TAR_CMD} -xzf ${tarball_name}.tar.gz -C unpack && \
+rm ${tarball_name}.tar.gz && \
+mv unpack/${tarball_name} unpack/node && \
+${TAR_CMD} -czf node.tar.gz -C unpack node/ && \
+rm -rf unpack
diff --git a/build-support/bin/node/mac/10.15/v12.18.2/build.sh b/build-support/bin/node/mac/10.15/v12.18.2/build.sh
new file mode 100644
index 0000000..3f9948d
--- /dev/null
+++ b/build-support/bin/node/mac/10.15/v12.18.2/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -exu
+
+# Build Node.js for just this version and architecture.
+NODE_VERSION="v12.18.2"
+ARCH="darwin-x64"
+
+tarball_name="node-${NODE_VERSION}-${ARCH}"
+
+# Make it easy to use gnu-tar on Mac, since the default bsdtar that comes with OS X
+# is not compatible with gnu-tar.
+TAR_CMD="${TAR_CMD:-tar}"
+echo "Using tar command '${TAR_CMD}'"
+
+curl -O https://nodejs.org/dist/${NODE_VERSION}/${tarball_name}.tar.gz
+
+# Unpack and repack
+rm -rf unpack && mkdir unpack && \
+${TAR_CMD} -xzf ${tarball_name}.tar.gz -C unpack && \
+rm ${tarball_name}.tar.gz && \
+mv unpack/${tarball_name} unpack/node && \
+${TAR_CMD} -czf node.tar.gz -C unpack node/ && \
+rm -rf unpack