diff --git a/Dockerfile.server-oracle b/Dockerfile.server-oracle
index 2789e9f2..0aa9dd20 100644
--- a/Dockerfile.server-oracle
+++ b/Dockerfile.server-oracle
@@ -74,7 +74,7 @@ ENV PKG_CONFIG_PATH=/usr/lib/oracle/23/client64/lib/pkgconfig
 # slower, and it makes the image build depend on reaching go.dev at build time.
 # .github/workflows/deps-bump.yml raises this ARG and the go.mod floor together.
 # Use TARGETARCH to download the correct architecture binary
-ARG GO_VERSION=1.27.2
+ARG GO_VERSION=1.27.3
 ARG TARGETARCH
 RUN GOARCH=$(echo ${TARGETARCH} | sed 's/amd64/amd64/;s/arm64/arm64/') && \
     curl -fsSL "https://go.dev/dl/go${GO_VERSION}.linux-${GOARCH}.tar.gz" -o /tmp/go.tar.gz && \
diff --git a/go.mod b/go.mod
index 8cd9479b..1b61a3e4 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/ericfitz/tmi
 
 go 1.26.2
 
-toolchain go1.27.2
+toolchain go1.27.3
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.2