diff --git a/cmd/replacer/Dockerfile b/cmd/replacer/Dockerfile
index 8457e0b214db..69979e4d972f 100644
--- a/cmd/replacer/Dockerfile
+++ b/cmd/replacer/Dockerfile
@@ -6,7 +6,7 @@ RUN apk --no-cache add pcre-dev
 # The comby/comby image is a small binary-only distribution. See the bin and src directories
 # here: https://github.com/comby-tools/comby/tree/master/dockerfiles/alpine
 # hadolint ignore=DL3022
-COPY --from=comby/comby:0.7.0@sha256:7e4995f7c294f447d0b06e3854a829126b210da9a64cbe32154fbe4468659e20 /usr/local/bin/comby /usr/local/bin/comby
+COPY --from=comby/comby:0.18.4@sha256:b47ce282778bfea7f80d45f5ef0cc546ba0d6347baccebaf171a7866143b2593 /usr/local/bin/comby /usr/local/bin/comby
 
 ARG COMMIT_SHA="unknown"
 ARG DATE="unknown"
diff --git a/cmd/server/Dockerfile b/cmd/server/Dockerfile
index 28cfd321d0db..fea8d9847a04 100644
--- a/cmd/server/Dockerfile
+++ b/cmd/server/Dockerfile
@@ -50,7 +50,7 @@ RUN apk update && apk add --no-cache \
 # the ENV variables from its Dockerfile (https://github.com/sourcegraph/syntect_server/blob/master/Dockerfile)
 # have been appropriately set in cmd/server/shared/shared.go.
 # hadolint ignore=DL3022
-COPY --from=comby/comby:0.7.0@sha256:7e4995f7c294f447d0b06e3854a829126b210da9a64cbe32154fbe4468659e20 /usr/local/bin/comby /usr/local/bin/comby
+COPY --from=comby/comby:0.18.4@sha256:b47ce282778bfea7f80d45f5ef0cc546ba0d6347baccebaf171a7866143b2593 /usr/local/bin/comby /usr/local/bin/comby
 # hadolint ignore=DL3022
 COPY --from=sourcegraph/syntect_server:96e3f14@sha256:f2b5eb5ef162f349e98d2d772955724b8f2b0bf2925797a049d3752953474a88 /syntect_server /usr/local/bin/
 COPY --from=ctags /usr/local/bin/universal-* /usr/local/bin/