diff --git a/.github/workflows/contract.yaml b/.github/workflows/contract.yaml
index 7c9fd47bd..b38e0e8f5 100644
--- a/.github/workflows/contract.yaml
+++ b/.github/workflows/contract.yaml
@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        toolchain: [stable, nightly]
+        toolchain: [nightly]
 
     steps:
       - id: checkout
diff --git a/.github/workflows/deployment.yaml b/.github/workflows/deployment.yaml
index 5df50a4b0..625f98734 100644
--- a/.github/workflows/deployment.yaml
+++ b/.github/workflows/deployment.yaml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        toolchain: [stable, nightly]
+        toolchain: [nightly]
 
     steps:
       - id: checkout
diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index f60f03e5e..d9d0c60c9 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -39,7 +39,7 @@ jobs:
 
     strategy:
       matrix:
-        toolchain: [stable, nightly]
+        toolchain: [nightly]
 
     steps:
       - id: checkout
@@ -79,7 +79,7 @@ jobs:
 
     strategy:
       matrix:
-        toolchain: [stable, nightly]
+        toolchain: [nightly]
 
     steps:
       - id: checkout
diff --git a/Containerfile b/Containerfile
index 8ea555c2d..69ac98ab8 100644
--- a/Containerfile
+++ b/Containerfile
@@ -3,13 +3,13 @@
 # Torrust Tracker
 
 ## Builder Image
-FROM rust:bookworm as chef
+FROM rustlang:nightly-bookworm as chef
 WORKDIR /tmp
 RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash
 RUN cargo binstall --no-confirm cargo-chef cargo-nextest
 
 ## Tester Image
-FROM rust:slim-bookworm as tester
+FROM rustlang:nightly-bookworm-slim as tester
 WORKDIR /tmp
 
 RUN apt-get update; apt-get install -y curl sqlite3; apt-get autoclean
diff --git a/cSpell.json b/cSpell.json
index c9b547c90..0e1095e89 100644
--- a/cSpell.json
+++ b/cSpell.json
@@ -97,6 +97,7 @@
         "RUSTDOCFLAGS",
         "RUSTFLAGS",
         "rustfmt",
+        "rustlang",
         "Rustls",
         "Seedable",
         "serde",