diff --git a/lib/PyClassifiers b/lib/PyClassifiers
index 3226fb6..5a6d38e 160000
--- a/lib/PyClassifiers
+++ b/lib/PyClassifiers
@@ -1 +1 @@
-Subproject commit 3226fb671b056c7cec695827515bed57935c08d1
+Subproject commit 5a6d38e900736c4ffd9b91de26d290559ee69c08
diff --git a/lib/catch2 b/lib/catch2
index 1078e7e..bbba3d8 160000
--- a/lib/catch2
+++ b/lib/catch2
@@ -1 +1 @@
-Subproject commit 1078e7e95b3a06d4dadc75188de48bc4afffb955
+Subproject commit bbba3d8a068aeb5ec677db30947fe97fe047a2ba
diff --git a/lib/libxlsxwriter b/lib/libxlsxwriter
index 6a2364c..b0c76b3 160000
--- a/lib/libxlsxwriter
+++ b/lib/libxlsxwriter
@@ -1 +1 @@
-Subproject commit 6a2364c42cac3bb6cf80ac501c3d5b3c2910bd17
+Subproject commit b0c76b3396f32b2f1b53781a5caea084cadd94d3