diff --git a/.github/workflows/elixir-build-and-test.yml b/.github/workflows/elixir-build-and-test.yml
index 646bc50..1a4d0ec 100644
--- a/.github/workflows/elixir-build-and-test.yml
+++ b/.github/workflows/elixir-build-and-test.yml
@@ -37,7 +37,7 @@ jobs:
         uses: ./.github/actions/elixir-setup
         with:
           elixir-version: 1.16.2
-          otp-version: 26.2.3
+          otp-version: 26.2.4
           build-flags: --all-warnings --warnings-as-errors
           build-app: true
 
diff --git a/.github/workflows/elixir-dialyzer.yml b/.github/workflows/elixir-dialyzer.yml
index a999be0..3d7bc3c 100644
--- a/.github/workflows/elixir-dialyzer.yml
+++ b/.github/workflows/elixir-dialyzer.yml
@@ -24,7 +24,7 @@ jobs:
         id: beam
         with:
           elixir-version: 1.16.2
-          otp-version: 26.2.3
+          otp-version: 26.2.4
           build-app: false
 
       # Don't cache PLTs based on mix.lock hash, as Dialyzer can incrementally update even old ones
diff --git a/.github/workflows/elixir-quality-checks.yml b/.github/workflows/elixir-quality-checks.yml
index 1b89c69..f320e38 100644
--- a/.github/workflows/elixir-quality-checks.yml
+++ b/.github/workflows/elixir-quality-checks.yml
@@ -21,7 +21,7 @@ jobs:
         uses: ./.github/actions/elixir-setup
         with:
           elixir-version: 1.16.2
-          otp-version: 26.2.3
+          otp-version: 26.2.4
           build-app: false
 
       - name: Check for unused deps
diff --git a/.github/workflows/nightly-integration-test.yml b/.github/workflows/nightly-integration-test.yml
index d7a974d..96b8fa3 100644
--- a/.github/workflows/nightly-integration-test.yml
+++ b/.github/workflows/nightly-integration-test.yml
@@ -33,7 +33,7 @@ jobs:
         uses: ./.github/actions/elixir-setup
         with:
           elixir-version: 1.16.2
-          otp-version: 26.2.3
+          otp-version: 26.2.4
 
       - name: Run Migrations
         run: mix ecto.migrate
diff --git a/.tool-versions b/.tool-versions
index 6be4749..b8e2452 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 elixir 1.16.2
-erlang 26.2.3
+erlang 26.2.4
 nodejs 20.11.1
diff --git a/Dockerfile b/Dockerfile
index 3fb5fe3..e0f575d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,14 +7,14 @@
 # This file is based on these images:
 #
 #   - https://hub.docker.com/r/hexpm/elixir/tags - for the build image
-#   - https://hub.docker.com/_/debian?tab=tags&page=1&name=bookworm-20231009-slim - for the release image
+#   - https://hub.docker.com/_/debian?tab=tags&page=1&name=bookworm-20240408-slim - for the release image
 #   - https://pkgs.org/ - resource for finding needed packages
-#   - Ex: hexpm/elixir:1.16.2-erlang-26.2.3-debian-bookworm-20231009-slim
+#   - Ex: hexpm/elixir:1.16.2-erlang-26.2.4-debian-bookworm-20240408-slim
 #
 ARG ELIXIR_VERSION=1.16.2
-ARG OTP_VERSION=26.2.3
+ARG OTP_VERSION=26.2.4
 ARG NODE_VERSION=20.11.1
-ARG DEBIAN_VERSION=bookworm-20231009-slim
+ARG DEBIAN_VERSION=bookworm-20240408-slim
 
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG NODE_BUILDER_IMAGE="node:${NODE_VERSION}-bookworm-slim"