diff --git a/create_tarball.sh b/create_tarball.sh
index 39d8b3e..690e3be 100644
--- a/create_tarball.sh
+++ b/create_tarball.sh
@@ -59,7 +59,7 @@ solutions = [
 EOF
 
 echo ">>>>>> Downloading electron-${ELECTRON_PKGVERSION}"
-gclient sync --jobs 4 --nohooks --no-history --shallow --revision=v"${ELECTRON_PKGVERSION}"
+gclient sync -v --jobs $(nproc) --nohooks --no-history --shallow --revision=v"${ELECTRON_PKGVERSION}"
 if [ $? -ne 0 ]; then
     echo "ERROR: gclient sync failed"
     cleanup_and_exit 1
@@ -102,6 +102,10 @@ python3 src/tools/update_pgo_profiles.py \
     update \
     --gs-url-base=chromium-optimization-profiles/pgo_profiles
 
+
+#The following commands overwrite this file which is needed during build.
+#The precise content is unimportant, but we cache the original one for reproducibility.
+mv -v src/third_party/node/node_modules.tar.gz.sha1{,.bak}
 # Needed to get typescript compiler
 echo ">>>>>> Get node modules for third_party/node"
 bash src/third_party/node/update_npm_deps
@@ -109,6 +113,9 @@ if [ $? -ne 0 ]; then
     echo "ERROR: npm ci failed"
     cleanup_and_exit 1
 fi
+mv -v src/third_party/node/node_modules.tar.gz.sha1{.bak,}
+# Remove unnecessary repack of node_modules
+rm -v src/third_party/node/node_modules.tar.gz
 
 echo ">>>>>> Get node modules for electron"
 pushd src/electron || cleanup_and_exit 1
@@ -375,10 +382,13 @@ fi
 rm -rf third_party/blink/web_tests # 1.6GB
 rm -rf third_party/catapult/tracing/test_data # 200MB
 find . -type d -name .git -print0 | xargs -0 rm -rf
+# Remove generatted python bytecode
+find . -type d -name __pycache__ -print0 | xargs -0 rm -rvf
+find . -type f -name '*.pyc' -print -delete
 popd || cleanup_and_exit 1
 
 echo ">>>>>> Create tarball"
-XZ_OPT="-T$(nproc)" tar cJf "${ELECTRON_PKGDIR}/${ELECTRON_PKGNAME}-${ELECTRON_PKGVERSION}.tar.xz" "${ELECTRON_PKGNAME}-${ELECTRON_PKGVERSION}"
+XZ_OPT="-T$(nproc) -e9" tar -vcJf "${ELECTRON_PKGDIR}/${ELECTRON_PKGNAME}-${ELECTRON_PKGVERSION}.tar.xz" "${ELECTRON_PKGNAME}-${ELECTRON_PKGVERSION}"
 if [ $? -ne 0 ]; then
     echo "ERROR: tar cJf failed"
     cleanup_and_exit 1
diff --git a/electron-17.4.4.tar.xz b/electron-17.4.4.tar.xz
deleted file mode 100644
index b98fd05..0000000
--- a/electron-17.4.4.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f9b4a65b565ab0975efb636f8f101f8cf04f3d831d746e4f15a85958cd0fabd6
-size 1201481424
diff --git a/electron-17.4.5.tar.xz b/electron-17.4.5.tar.xz
new file mode 100644
index 0000000..35994e3
--- /dev/null
+++ b/electron-17.4.5.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:88a85916266185e64655bf082492439654ec30f6afb5f958c9b6d61754a46154
+size 1108075600
diff --git a/nodejs-electron.changes b/nodejs-electron.changes
index 3399545..6a4abc0 100644
--- a/nodejs-electron.changes
+++ b/nodejs-electron.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Thu May 19 10:08:10 UTC 2022 - Bruno Pitrus <brunopitrus@hotmail.com>
+- New upstream release 17.4.5:
+  * Fixed a crash when calling loadExtension on an extension directory that's missing a manifest file. #34193 (Also in 16)
+  * SIGUSR1 is no longer handled when the node_cli_inspect fuse is disabled.
+  * Backported security fixes: CVE-2022-1637, CVE-2022-1638, CVE-2022-1639.
+- Remove some spurious generated files from the tarball.
+
 -------------------------------------------------------------------
 Wed May 11 21:05:41 UTC 2022 - Bruno Pitrus <brunopitrus@hotmail.com>
 - New upstream release 17.4.4:
diff --git a/nodejs-electron.spec b/nodejs-electron.spec
index 6e72c32..16ae4d6 100644
--- a/nodejs-electron.spec
+++ b/nodejs-electron.spec
@@ -74,7 +74,7 @@ ExcludeArch:    %{ix86} %{arm}
 %endif
 %bcond_without system_ffmpeg
 Name:           nodejs-electron
-Version:        17.4.4
+Version:        17.4.5
 Release:        0
 Summary:        Build cross platform desktop apps with JavaScript, HTML, and CSS
 License:        MIT