diff --git a/Dockerfile b/Dockerfile
index 1cce323..5ad4e4c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ COPY *.conf ./
 
 RUN go build -buildmode=c-shared -o out_pulsar.so .
 
-FROM fluent/fluent-bit:2.2.3 as fluent-bit
+FROM fluent/fluent-bit:3.1.2 as fluent-bit
 # hadolint ignore=DL3002
 USER root