diff --git a/10/alpine/Dockerfile b/10/alpine/Dockerfile
index d3d14190a2..696f61780c 100644
--- a/10/alpine/Dockerfile
+++ b/10/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/11/alpine/Dockerfile b/11/alpine/Dockerfile
index 6c563243c7..bfc79d5d00 100644
--- a/11/alpine/Dockerfile
+++ b/11/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/12/alpine/Dockerfile b/12/alpine/Dockerfile
index 1b6ee3f29d..958b2e8c85 100644
--- a/12/alpine/Dockerfile
+++ b/12/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/9.4/alpine/Dockerfile b/9.4/alpine/Dockerfile
index 5352cf95d2..550f0bdf52 100644
--- a/9.4/alpine/Dockerfile
+++ b/9.4/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/9.5/alpine/Dockerfile b/9.5/alpine/Dockerfile
index 57de1d46f2..1ec74005f1 100644
--- a/9.5/alpine/Dockerfile
+++ b/9.5/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/9.6/alpine/Dockerfile b/9.6/alpine/Dockerfile
index 3bf524a3c2..935fe6457d 100644
--- a/9.6/alpine/Dockerfile
+++ b/9.6/alpine/Dockerfile
@@ -1,5 +1,5 @@
 # vim:set ft=dockerfile:
-FROM alpine:3.9
+FROM alpine:3.10
 
 # alpine includes "postgres" user/group in base install
 #   /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
diff --git a/update.sh b/update.sh
index 8432b9add9..9806b14d89 100755
--- a/update.sh
+++ b/update.sh
@@ -21,7 +21,7 @@ declare -A debianSuite=(
 	[10]='stretch-slim'
 	[11]='stretch-slim'
 )
-defaultAlpineVersion='3.9'
+defaultAlpineVersion='3.10'
 declare -A alpineVersion=(
 	#[9.6]='3.5'
 )