diff --git a/pomerium-datasource-ip2location.dockerfile b/pomerium-datasource-ip2location.dockerfile
index e76708d..de769f1 100644
--- a/pomerium-datasource-ip2location.dockerfile
+++ b/pomerium-datasource-ip2location.dockerfile
@@ -9,7 +9,7 @@ RUN --mount=type=secret,id=download_token \
     -o /download/IP2LOCATION-LITE-DB1.CSV.ZIP \
     "https://www.ip2location.com/download/?token=${DOWNLOAD_TOKEN}&file=DB1LITECSV"
 
-FROM golang:1.20.4-buster@sha256:6be60119fd752c3ee530cb13f778801af1519a6b40e58539545c546d6e04b610 as build
+FROM golang:1.20.5-buster@sha256:e8c88a10ec0e0be5677c6c2ebd12a321a5b7493d3d67c0d5c588884ed5a8794a as build
 
 WORKDIR /build
 
diff --git a/pomerium-datasource.dockerfile b/pomerium-datasource.dockerfile
index 58e5a92..64586d5 100644
--- a/pomerium-datasource.dockerfile
+++ b/pomerium-datasource.dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.4-buster@sha256:6be60119fd752c3ee530cb13f778801af1519a6b40e58539545c546d6e04b610  as build
+FROM golang:1.20.5-buster@sha256:e8c88a10ec0e0be5677c6c2ebd12a321a5b7493d3d67c0d5c588884ed5a8794a  as build
 
 WORKDIR /build