diff --git a/src/Libraries/Lombiq.HelpfulLibraries b/src/Libraries/Lombiq.HelpfulLibraries
index 5c899ec65..770df18e4 160000
--- a/src/Libraries/Lombiq.HelpfulLibraries
+++ b/src/Libraries/Lombiq.HelpfulLibraries
@@ -1 +1 @@
-Subproject commit 5c899ec65c9c3f0e177c44fed23628b73f8adbf4
+Subproject commit 770df18e44d89ba245095487e23f939f5cb4a73a
diff --git a/src/Modules/Lombiq.TrainingDemo b/src/Modules/Lombiq.TrainingDemo
index a2dcc8ba1..6e7e9dbaa 160000
--- a/src/Modules/Lombiq.TrainingDemo
+++ b/src/Modules/Lombiq.TrainingDemo
@@ -1 +1 @@
-Subproject commit a2dcc8ba17ddaacffa5b097126fb9e668256fb0c
+Subproject commit 6e7e9dbaab957d8dc584c66883a46645e6d4210f
diff --git a/test/Lombiq.Tests b/test/Lombiq.Tests
index 838cbd106..62b866dd1 160000
--- a/test/Lombiq.Tests
+++ b/test/Lombiq.Tests
@@ -1 +1 @@
-Subproject commit 838cbd10699edb381366448e9d9f9734feef0d28
+Subproject commit 62b866dd1ea782ccb22c72f44caa281df452b07c
diff --git a/tools/Lombiq.GitHub.Actions b/tools/Lombiq.GitHub.Actions
index 2d350471d..27a53dfa7 160000
--- a/tools/Lombiq.GitHub.Actions
+++ b/tools/Lombiq.GitHub.Actions
@@ -1 +1 @@
-Subproject commit 2d350471dc137fef8a8668f7f83ec70245ca450d
+Subproject commit 27a53dfa7a5e5e8c645123d6ad15b242de41f43e