diff --git a/Dockerfile b/Dockerfile
index 996383f95..d2f03a7a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@ RUN apk add --no-cache \
         build-base=0.5-r1 \
         ca-certificates=20190108-r0 \
         libffi-dev=3.2.1-r6 \
-        python3-dev=3.7.3-r0 \
+        python3-dev=3.7.4-r0 \
         libressl-dev=2.7.5-r0 \
         libstdc++=8.3.0-r0 \
         postgresql-dev \