diff --git a/binary_transparency/firmware/cmd/ft_personality/Dockerfile b/binary_transparency/firmware/cmd/ft_personality/Dockerfile
index 1bc6b04e9..48df3cb0e 100644
--- a/binary_transparency/firmware/cmd/ft_personality/Dockerfile
+++ b/binary_transparency/firmware/cmd/ft_personality/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.26.2-bookworm@sha256:47ce5636e9936b2c5cbf708925578ef386b4f8872aec74a67bd13a627d242b19 AS builder
+FROM golang:1.26.3-bookworm@sha256:386d475a660466863d9f8c766fec64d7fdad3edac2c6a05020c09534d71edb4b AS builder
 LABEL stage=builder
 
 ARG GOFLAGS=""
@@ -19,7 +19,7 @@ COPY . .
 RUN go build ./binary_transparency/firmware/cmd/ft_personality
 
 # Build release image
-FROM golang:1.26.2-bookworm@sha256:47ce5636e9936b2c5cbf708925578ef386b4f8872aec74a67bd13a627d242b19
+FROM golang:1.26.3-bookworm@sha256:386d475a660466863d9f8c766fec64d7fdad3edac2c6a05020c09534d71edb4b
 
 COPY --from=builder /build/ft_personality /bin/ft_personality
 ENTRYPOINT ["/bin/ft_personality"]
diff --git a/binary_transparency/firmware/cmd/ftmapserver/Dockerfile b/binary_transparency/firmware/cmd/ftmapserver/Dockerfile
index 24a16534e..ddac08083 100644
--- a/binary_transparency/firmware/cmd/ftmapserver/Dockerfile
+++ b/binary_transparency/firmware/cmd/ftmapserver/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.26.2-bookworm@sha256:47ce5636e9936b2c5cbf708925578ef386b4f8872aec74a67bd13a627d242b19 AS builder
+FROM golang:1.26.3-bookworm@sha256:386d475a660466863d9f8c766fec64d7fdad3edac2c6a05020c09534d71edb4b AS builder
 LABEL stage=builder
 
 ARG GOFLAGS=""
@@ -19,7 +19,7 @@ COPY . .
 RUN go build ./binary_transparency/firmware/cmd/ftmapserver
 
 # Build release image
-FROM golang:1.26.2-bookworm@sha256:47ce5636e9936b2c5cbf708925578ef386b4f8872aec74a67bd13a627d242b19
+FROM golang:1.26.3-bookworm@sha256:386d475a660466863d9f8c766fec64d7fdad3edac2c6a05020c09534d71edb4b
 
 COPY --from=builder /build/ftmapserver /bin/ftmapserver
 ENTRYPOINT ["/bin/ftmapserver"]
diff --git a/clone/cmd/ctclone/Dockerfile b/clone/cmd/ctclone/Dockerfile
index 7cd37c882..5ab08ef1d 100644
--- a/clone/cmd/ctclone/Dockerfile
+++ b/clone/cmd/ctclone/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.26.2-alpine3.22@sha256:7ef941168f213aa115df2e61364d67682129e99dc8188b734139dea862cc7d31 AS builder
+FROM golang:1.26.3-alpine3.22@sha256:be93003ee861b3b91b6ebcb22678524947e0cd786c2df3f32af520006b1e54f5 AS builder
 
 ARG GOFLAGS=""
 ENV GOFLAGS=$GOFLAGS
diff --git a/clone/cmd/ctverify/Dockerfile b/clone/cmd/ctverify/Dockerfile
index 4b086c398..2460d3b8e 100644
--- a/clone/cmd/ctverify/Dockerfile
+++ b/clone/cmd/ctverify/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.26.2-alpine3.22@sha256:7ef941168f213aa115df2e61364d67682129e99dc8188b734139dea862cc7d31 AS builder
+FROM golang:1.26.3-alpine3.22@sha256:be93003ee861b3b91b6ebcb22678524947e0cd786c2df3f32af520006b1e54f5 AS builder
 
 ARG GOFLAGS=""
 ENV GOFLAGS=$GOFLAGS
diff --git a/clone/cmd/sumdbclone/Dockerfile b/clone/cmd/sumdbclone/Dockerfile
index 07fa49179..a2812f342 100644
--- a/clone/cmd/sumdbclone/Dockerfile
+++ b/clone/cmd/sumdbclone/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.26.2-alpine3.22@sha256:7ef941168f213aa115df2e61364d67682129e99dc8188b734139dea862cc7d31 AS builder
+FROM golang:1.26.3-alpine3.22@sha256:be93003ee861b3b91b6ebcb22678524947e0cd786c2df3f32af520006b1e54f5 AS builder
 
 ARG GOFLAGS=""
 ENV GOFLAGS=$GOFLAGS
diff --git a/integration/Dockerfile b/integration/Dockerfile
index 19cad6b05..f5fb16cdf 100644
--- a/integration/Dockerfile
+++ b/integration/Dockerfile
@@ -1,5 +1,5 @@
 # This Dockerfile builds a base image for the CloudBuild integration testing.
-FROM golang:1.26.2-bookworm@sha256:47ce5636e9936b2c5cbf708925578ef386b4f8872aec74a67bd13a627d242b19 AS testbase
+FROM golang:1.26.3-bookworm@sha256:386d475a660466863d9f8c766fec64d7fdad3edac2c6a05020c09534d71edb4b AS testbase
 
 WORKDIR /testbase