diff --git a/Dockerfile b/Dockerfile
index 6be79e8..4b3836c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM perl:5.38
+FROM perl:5.40
 
 COPY . /usr/src/fuzz.pm
 WORKDIR /usr/src/fuzz.pm