diff --git a/changelog.d/5619.misc b/changelog.d/5619.misc
new file mode 100644
index 0000000000..c5e22d2051
--- /dev/null
+++ b/changelog.d/5619.misc
@@ -0,0 +1 @@
+Base Docker image on a newer Alpine Linux version (3.8 -> 3.10)
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 79276209f6..e5a0d6d5f6 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -16,7 +16,7 @@ ARG PYTHON_VERSION=3.7
 ###
 ### Stage 0: builder
 ###
-FROM docker.io/python:${PYTHON_VERSION}-alpine3.8 as builder
+FROM docker.io/python:${PYTHON_VERSION}-alpine3.10 as builder
 
 # install the OS build deps
 
@@ -55,7 +55,7 @@ RUN pip install --prefix="/install" --no-warn-script-location \
 ### Stage 1: runtime
 ###
 
-FROM docker.io/python:${PYTHON_VERSION}-alpine3.8
+FROM docker.io/python:${PYTHON_VERSION}-alpine3.10
 
 # xmlsec is required for saml support
 RUN apk add --no-cache --virtual .runtime_deps \