diff --git a/Makefile b/Makefile
index 584eeb9beaa5..1e13f0befced 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ SHELL:=/usr/bin/env bash
 #
 # Go.
 #
-GO_VERSION ?= 1.18.8
+GO_VERSION ?= 1.18.9
 GO_CONTAINER_IMAGE ?= docker.io/library/golang:$(GO_VERSION)
 
 # Use GOPROXY environment variable if set
diff --git a/Tiltfile b/Tiltfile
index 19e4aa9a1e42..173a0afb1db1 100644
--- a/Tiltfile
+++ b/Tiltfile
@@ -145,7 +145,7 @@ def load_provider_tiltfiles():
 
 tilt_helper_dockerfile_header = """
 # Tilt image
-FROM golang:1.18.8 as tilt-helper
+FROM golang:1.18.9 as tilt-helper
 # Support live reloading with Tilt
 RUN go install github.com/go-delve/delve/cmd/dlv@latest
 RUN wget --output-document /restart.sh --quiet https://raw.githubusercontent.com/windmilleng/rerun-process-wrapper/master/restart.sh  && \