diff --git a/Dockerfile-15 b/Dockerfile-15
index 80ef00380d..fbc3ccb610 100644
--- a/Dockerfile-15
+++ b/Dockerfile-15
@@ -27,8 +27,8 @@ extra-experimental-features = nix-command flakes
 extra-substituters = https://nix-postgres-artifacts.s3.amazonaws.com
 extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=
 EOF
-ARG NIX_VERSION=2.34.6
-ARG NIX_INSTALLER_HASH=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+ARG NIX_VERSION=2.35.3
+ARG NIX_INSTALLER_HASH=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 RUN curl -fsSL "https://releases.nixos.org/nix/nix-$NIX_VERSION/install" -o /tmp/nix-install && \
     echo "$NIX_INSTALLER_HASH  /tmp/nix-install" | sha256sum -c - && \
     sh /tmp/nix-install --daemon --no-channel-add --yes --nix-extra-conf-file /tmp/extra-nix.conf && \
diff --git a/Dockerfile-17 b/Dockerfile-17
index b208c6cb39..beacdff443 100644
--- a/Dockerfile-17
+++ b/Dockerfile-17
@@ -27,8 +27,8 @@ extra-experimental-features = nix-command flakes
 extra-substituters = https://nix-postgres-artifacts.s3.amazonaws.com
 extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=
 EOF
-ARG NIX_VERSION=2.34.6
-ARG NIX_INSTALLER_HASH=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+ARG NIX_VERSION=2.35.3
+ARG NIX_INSTALLER_HASH=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 RUN curl -fsSL "https://releases.nixos.org/nix/nix-$NIX_VERSION/install" -o /tmp/nix-install && \
     echo "$NIX_INSTALLER_HASH  /tmp/nix-install" | sha256sum -c - && \
     sh /tmp/nix-install --daemon --no-channel-add --yes --nix-extra-conf-file /tmp/extra-nix.conf && \
diff --git a/Dockerfile-multigres b/Dockerfile-multigres
index f6c0a851d7..edc47ea4ee 100644
--- a/Dockerfile-multigres
+++ b/Dockerfile-multigres
@@ -28,8 +28,8 @@ extra-experimental-features = nix-command flakes
 extra-substituters = https://nix-postgres-artifacts.s3.amazonaws.com
 extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=
 EOF
-ARG NIX_VERSION=2.34.6
-ARG NIX_INSTALLER_HASH=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+ARG NIX_VERSION=2.35.3
+ARG NIX_INSTALLER_HASH=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 RUN curl -fsSL "https://releases.nixos.org/nix/nix-$NIX_VERSION/install" -o /tmp/nix-install && \
     echo "$NIX_INSTALLER_HASH  /tmp/nix-install" | sha256sum -c - && \
     sh /tmp/nix-install --daemon --no-channel-add --yes --nix-extra-conf-file /tmp/extra-nix.conf && \
diff --git a/Dockerfile-orioledb-17 b/Dockerfile-orioledb-17
index 8f6959d3fc..35c069076a 100644
--- a/Dockerfile-orioledb-17
+++ b/Dockerfile-orioledb-17
@@ -27,8 +27,8 @@ extra-experimental-features = nix-command flakes
 extra-substituters = https://nix-postgres-artifacts.s3.amazonaws.com
 extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=
 EOF
-ARG NIX_VERSION=2.34.6
-ARG NIX_INSTALLER_HASH=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+ARG NIX_VERSION=2.35.3
+ARG NIX_INSTALLER_HASH=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 RUN curl -fsSL "https://releases.nixos.org/nix/nix-$NIX_VERSION/install" -o /tmp/nix-install && \
     echo "$NIX_INSTALLER_HASH  /tmp/nix-install" | sha256sum -c - && \
     sh /tmp/nix-install --daemon --no-channel-add --yes --nix-extra-conf-file /tmp/extra-nix.conf && \
diff --git a/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh b/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
index 27b487d39f..7c8b5b0075 100755
--- a/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
+++ b/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
@@ -60,8 +60,8 @@ PGBINOLD="/usr/lib/postgresql/bin"
 PG_UPGRADE_BIN_DIR="/tmp/pg_upgrade_bin/$PGVERSION"
 NIX_INSTALLER_PATH="/tmp/persistent/nix-installer"
 NIX_INSTALLER_PACKAGE_PATH="$NIX_INSTALLER_PATH.tar.gz"
-NIX_VERSION="2.34.6"
-NIX_OFFICIAL_INSTALLER_SHA256="bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a"
+NIX_VERSION="2.35.3"
+NIX_OFFICIAL_INSTALLER_SHA256="69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9"
 
 if [ -L "$PGBINOLD/pg_upgrade" ]; then
 	BINARY_PATH=$(readlink -f "$PGBINOLD/pg_upgrade")
diff --git a/ansible/postgres_release.yml b/ansible/postgres_release.yml
index b603566ab6..4ec61582b6 100644
--- a/ansible/postgres_release.yml
+++ b/ansible/postgres_release.yml
@@ -1,5 +1,5 @@
 ---
 postgres_release:
-  postgresorioledb-17: "17.11.0.006-orioledb"
-  postgres17: "17.11.0.006"
-  postgres15: "15.19.0.006"
+  postgresorioledb-17: "17.11.0.007-orioledb"
+  postgres17: "17.11.0.007"
+  postgres15: "15.19.0.007"
diff --git a/docs/multigres-image.md b/docs/multigres-image.md
index 848f0b83e4..33b433a0a5 100644
--- a/docs/multigres-image.md
+++ b/docs/multigres-image.md
@@ -99,12 +99,12 @@ extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7V
 
 Read about the binary cache in [/nix/docs/binary-cache.md](/nix/docs/binary-cache.md).
 
-### Step 2: Install Nix 2.34.6
+### Step 2: Install Nix
 
-Run the following command to install Nix 2.34.6 (the version used in CI) with the custom configuration:
+Run the following command to install the Nix version used in CI (pinned in `.github/actions/install-nix/setup-nix.sh`) with the custom configuration:
 
 ```bash
-curl -L https://releases.nixos.org/nix/nix-2.34.6/install | sh -s -- --daemon --yes --nix-extra-conf-file ./nix.conf.extra
+curl -L https://releases.nixos.org/nix/nix-2.35.3/install | sh -s -- --daemon --yes --nix-extra-conf-file ./nix.conf.extra
 ```
 
 This will install Nix with our build caches pre-configured, which should eliminate substituter-related errors.
@@ -115,7 +115,7 @@ the Nix tools installed on `$PATH` and so that your user shell can see the
 extra settings.
 
 You should now be able to do something like the following; try running these
-same commands on your machine:
+same commands on your machine. Your versions are likely different from the ones shown:
 
 ```
 $ nix --version
diff --git a/nix/docs/start-here.md b/nix/docs/start-here.md
index 38c5593aa7..e93e8dddde 100644
--- a/nix/docs/start-here.md
+++ b/nix/docs/start-here.md
@@ -63,13 +63,13 @@ extra-trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7V
 
 Read about the binary cache in [/nix/docs/binary-cache.md](/nix/docs/binary-cache.md).
 
-### Step 2: Install Nix 2.34.6
+### Step 2: Install Nix
 
-Run the following command to install Nix 2.34.6 (the version used in CI) with the custom configuration:
+Run the following command to install the Nix version used in CI (pinned in `.github/actions/install-nix/setup-nix.sh`) with the custom configuration:
 
 ```bash
-curl -fsSL https://releases.nixos.org/nix/nix-2.34.6/install -o nix-install
-echo "bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a  nix-install" | sha256sum -c -
+curl -fsSL https://releases.nixos.org/nix/nix-2.35.3/install -o nix-install
+echo "69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9  nix-install" | sha256sum -c -
 sh nix-install --daemon --yes --nix-extra-conf-file ./nix.conf
 ```
 
@@ -83,7 +83,7 @@ the Nix tools installed on `$PATH` and so that your user shell can see the
 extra settings.
 
 You should now be able to do something like the following; try running these
-same commands on your machine:
+same commands on your machine. Your versions are likely different from the ones shown:
 
 ```
 $ nix --version
diff --git a/packer/scripts/nix-provision.sh b/packer/scripts/nix-provision.sh
index daa427d386..083d77291f 100755
--- a/packer/scripts/nix-provision.sh
+++ b/packer/scripts/nix-provision.sh
@@ -28,8 +28,8 @@ function install_packages {
 }
 
 function install_nix() {
-	local nix_version=2.34.6
-	local nix_installer_sha256=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+	local nix_version=2.35.3
+	local nix_installer_sha256=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 	local nix_installer
 	nix_installer=$(mktemp)
 	curl -fsSL "https://releases.nixos.org/nix/nix-${nix_version}/install" -o "$nix_installer"
diff --git a/packer/scripts/qemu-bootstrap-nix.sh b/packer/scripts/qemu-bootstrap-nix.sh
index d4fdda6f98..bc20d627b2 100755
--- a/packer/scripts/qemu-bootstrap-nix.sh
+++ b/packer/scripts/qemu-bootstrap-nix.sh
@@ -129,8 +129,8 @@ function setup_locale {
 #################
 
 function install_nix() {
-	local nix_version=2.34.6
-	local nix_installer_sha256=bf6d12da4aeaae38ab509dc736df648597bcdee051046ea76d3d53d5b18fa54a
+	local nix_version=2.35.3
+	local nix_installer_sha256=69d0fe8fba8fe88f94c98b09964691ac9950abc7ecbf2ba861dc0533cfd901e9
 	local nix_installer
 	nix_installer=$(mktemp)
 	curl -fsSL "https://releases.nixos.org/nix/nix-${nix_version}/install" -o "$nix_installer"