diff --git a/.gitmodules b/.gitmodules
index 862f4808d5..27f7904b85 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,8 +10,3 @@
 	path = src/web/server/h2o/libh2o
 	url = https://github.com/h2o/h2o.git
 	ignore = untracked
-[submodule "fluent-bit"]
-	path = src/fluent-bit
-	url = https://github.com/fluent/fluent-bit.git
-	shallow = true
-	ignore = dirty
diff --git a/src/fluent-bit b/src/fluent-bit
deleted file mode 160000
index b19e9ce674..0000000000
--- a/src/fluent-bit
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit b19e9ce674de872640c00a697fa545b66df0628a