diff --git a/ext-src/pester b/ext-src/pester
index 234c99a8a..f23641488 160000
--- a/ext-src/pester
+++ b/ext-src/pester
@@ -1 +1 @@
-Subproject commit 234c99a8affb1562aec81f2717d9e9fe9537e38e
+Subproject commit f23641488f8d7bf8630ca3496e61562aa3a64009
diff --git a/pester.sh b/pester.sh
index 04fdcb4f7..d78fd7df2 100755
--- a/pester.sh
+++ b/pester.sh
@@ -1,4 +1,6 @@
 export CORE_ROOT=$(pwd)/bin
-./powershell -c "Invoke-Pester src/pester-tests/$1"
+./powershell -c "Invoke-Pester src/pester-tests/$1 -OutputFile pester-tests.xml -OutputFormat NUnitXml"
+# XML files are not executable
+chmod -x pester-tests.xml
 # Fix tty due to possible bug in .NET
 stty echo