diff --git a/bitcoind/Dockerfile b/bitcoind/Dockerfile
index 96e2987..fb6458d 100644
--- a/bitcoind/Dockerfile
+++ b/bitcoind/Dockerfile
@@ -1,7 +1,7 @@
 FROM debian:bookworm-slim
 
 ARG TARGETARCH TARGETOS
-ARG BITCOIN_VERSION=31.0
+ARG BITCOIN_VERSION=31.1
 ENV BITCOIN_VERSION=$BITCOIN_VERSION
 ENV WLADIMIRVDL_PGP_FINGERPRINT=71A3B16735405025D447E8F274810B012346C9A6
 ENV ACHOW_PGP_FINGERPRINT=152812300785C96444D3334D17565732E08E5E41
diff --git a/bitcoind/Dockerfile.gitian b/bitcoind/Dockerfile.gitian
index 2141ad5..072cd80 100644
--- a/bitcoind/Dockerfile.gitian
+++ b/bitcoind/Dockerfile.gitian
@@ -1,5 +1,5 @@
 # Dockerfile.gitian is kept as a compatibility alias for older commands.
-# Bitcoin Core 31.0 uses Guix for reproducible builds; prefer Dockerfile.guix.
+# Bitcoin Core 31.1 uses Guix for reproducible builds; prefer Dockerfile.guix.
 
 FROM debian:bookworm-slim
 
diff --git a/bitcoind/README.md b/bitcoind/README.md
index 1b92c6a..e636c56 100644
--- a/bitcoind/README.md
+++ b/bitcoind/README.md
@@ -1,15 +1,15 @@
 # Bitcoin
 
 * `Dockerfile` downloads the compiled binaries from <https://bitcoincore.org>. The file was adapted from <https://github.com/jamesob/docker-bitcoind>
-* `Dockerfile.guix` packages a locally built Bitcoin Core tree from `./bitcoin`. Bitcoin Core 31.0 uses [Guix](https://github.com/bitcoin/bitcoin/tree/v31.0/contrib/guix), not Gitian, for reproducible source builds.
+* `Dockerfile.guix` packages a locally built Bitcoin Core tree from `./bitcoin`. Bitcoin Core 31.1 uses [Guix](https://github.com/bitcoin/bitcoin/tree/v31.1/contrib/guix), not Gitian, for reproducible source builds.
 
-The default Bitcoin Core version is `31.0` for downloaded binaries and `v31.0` for source builds. Override with `VER=...` for `build-and-push-to-dockerhub.sh` or `BITCOIN_VERSION=...` for `run-guix.sh`.
+The default Bitcoin Core version is `31.1` for downloaded binaries and `v31.1` for source builds. Override with `VER=...` for `build-and-push-to-dockerhub.sh` or `BITCOIN_VERSION=...` for `run-guix.sh`.
 
 ## Building from source
 
 Install and configure Guix once by following Bitcoin Core's Guix setup guide:
 
-<https://github.com/bitcoin/bitcoin/blob/v31.0/contrib/guix/INSTALL.md>
+<https://github.com/bitcoin/bitcoin/blob/v31.1/contrib/guix/INSTALL.md>
 
 Then run the source build from this directory:
 
diff --git a/bitcoind/build-and-push-to-dockerhub.sh b/bitcoind/build-and-push-to-dockerhub.sh
index 902522d..b934204 100755
--- a/bitcoind/build-and-push-to-dockerhub.sh
+++ b/bitcoind/build-and-push-to-dockerhub.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 set -ex
 
-export VER=${VER:-31.0}
+export VER=${VER:-31.1}
 docker buildx build --platform linux/amd64,linux/arm64 \
   --push \
   --cache-from blockstream/bitcoind:latest \
diff --git a/bitcoind/run-gitian.sh b/bitcoind/run-gitian.sh
index a876695..c8fd26d 100755
--- a/bitcoind/run-gitian.sh
+++ b/bitcoind/run-gitian.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
-echo "run-gitian.sh is deprecated for Bitcoin Core 31.0; use run-guix.sh instead." >&2
+echo "run-gitian.sh is deprecated for Bitcoin Core 31.1; use run-guix.sh instead." >&2
 exec "$(dirname "$0")/run-guix.sh" "$@"
diff --git a/bitcoind/run-guix.sh b/bitcoind/run-guix.sh
index 7029f91..8424f5c 100755
--- a/bitcoind/run-guix.sh
+++ b/bitcoind/run-guix.sh
@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-BITCOIN_VERSION=${BITCOIN_VERSION:-v31.0}
+BITCOIN_VERSION=${BITCOIN_VERSION:-v31.1}
 BITCOIN_DIR=${BITCOIN_VERSION#v}
 HOSTS=${HOSTS:-x86_64-linux-gnu}
 JOBS=${JOBS:-2}