diff --git a/.github/workflows/blockifier_ci.yml b/.github/workflows/blockifier_ci.yml
index ec3655e2bf..407c210bd0 100644
--- a/.github/workflows/blockifier_ci.yml
+++ b/.github/workflows/blockifier_ci.yml
@@ -34,6 +34,9 @@ on:
       - 'scripts/install_build_tools.sh'
       - 'scripts/sequencer-ci.Dockerfile'
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/blockifier_compiled_cairo.yml b/.github/workflows/blockifier_compiled_cairo.yml
index afc3099d4f..f3df06a83d 100644
--- a/.github/workflows/blockifier_compiled_cairo.yml
+++ b/.github/workflows/blockifier_compiled_cairo.yml
@@ -15,6 +15,9 @@ on:
       - 'crates/blockifier/tests/requirements.txt'
       - 'scripts/dependencies.sh'
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/blockifier_reexecution_ci.yml b/.github/workflows/blockifier_reexecution_ci.yml
index 6dde67dd70..ebdd1eb9c1 100644
--- a/.github/workflows/blockifier_reexecution_ci.yml
+++ b/.github/workflows/blockifier_reexecution_ci.yml
@@ -19,6 +19,9 @@ on:
       - 'scripts/install_build_tools.sh'
       - 'scripts/sequencer-ci.Dockerfile'
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/committer_ci.yml b/.github/workflows/committer_ci.yml
index bd91e8b39b..c284523ed1 100644
--- a/.github/workflows/committer_ci.yml
+++ b/.github/workflows/committer_ci.yml
@@ -18,6 +18,9 @@ on:
       - 'crates/starknet_patricia/**'
       - 'scripts/dependencies.sh'
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/committer_cli_push.yml b/.github/workflows/committer_cli_push.yml
index 8475728b12..5690590674 100644
--- a/.github/workflows/committer_cli_push.yml
+++ b/.github/workflows/committer_cli_push.yml
@@ -34,6 +34,9 @@ on:
       - 'crates/starknet_patricia/**'
       - 'scripts/dependencies.sh'
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 42e201a850..c13d3504dc 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,6 +18,7 @@ on:
 
 env:
   CI: 1
+  RUSTFLAGS: "-D warnings"
 
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
diff --git a/.github/workflows/main_pr.yml b/.github/workflows/main_pr.yml
index a3d5cfe094..93540b13e6 100644
--- a/.github/workflows/main_pr.yml
+++ b/.github/workflows/main_pr.yml
@@ -9,6 +9,9 @@ on:
       - auto_merge_enabled
       - edited
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/papyrus_ci.yml b/.github/workflows/papyrus_ci.yml
index ca95f58837..cf8f68ede8 100644
--- a/.github/workflows/papyrus_ci.yml
+++ b/.github/workflows/papyrus_ci.yml
@@ -22,6 +22,9 @@ on:
   merge_group:
     types: [checks_requested]
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 # On PR events, cancel existing CI runs on this same PR for this workflow.
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.job }}
diff --git a/.github/workflows/papyrus_docker-publish.yml b/.github/workflows/papyrus_docker-publish.yml
index bf2559ce2b..8f6d57f347 100644
--- a/.github/workflows/papyrus_docker-publish.yml
+++ b/.github/workflows/papyrus_docker-publish.yml
@@ -28,6 +28,7 @@ concurrency:
 env:
   REGISTRY: ghcr.io
   REPO_NAME: ${{ github.repository }}
+  RUSTFLAGS: "-D warnings"
 
 jobs:
   docker-build-push:
diff --git a/.github/workflows/papyrus_nightly-tests-call.yml b/.github/workflows/papyrus_nightly-tests-call.yml
index d05d1938e0..dc5896a66e 100644
--- a/.github/workflows/papyrus_nightly-tests-call.yml
+++ b/.github/workflows/papyrus_nightly-tests-call.yml
@@ -16,6 +16,9 @@ on:
       SLACK_ALERT_CHANNEL:
         required: true
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 jobs:
   GW-integration-test-call:
     runs-on: ${{ inputs.os }}
diff --git a/.github/workflows/papyrus_nightly-tests.yml b/.github/workflows/papyrus_nightly-tests.yml
index 0592f28e3e..1f913a92b8 100644
--- a/.github/workflows/papyrus_nightly-tests.yml
+++ b/.github/workflows/papyrus_nightly-tests.yml
@@ -6,6 +6,9 @@ on:
     - cron: '30 0 * * *'  # Uses macos runner.
   workflow_dispatch:  # Uses ubuntu runner.
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 jobs:
   GW-integration-test-ubuntu:
     uses: ./.github/workflows/papyrus_nightly-tests-call.yml
diff --git a/.github/workflows/upload_artifacts_workflow.yml b/.github/workflows/upload_artifacts_workflow.yml
index 579aa8b390..4ed76eafb4 100644
--- a/.github/workflows/upload_artifacts_workflow.yml
+++ b/.github/workflows/upload_artifacts_workflow.yml
@@ -5,6 +5,9 @@ on:
     workflows: [Trigger-Workflow]
     types: [completed]
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 jobs:
   native-blockifier-artifacts-push:
     runs-on: starkware-ubuntu-20-04-medium
diff --git a/.github/workflows/verify-deps.yml b/.github/workflows/verify-deps.yml
index 8582cb1b6b..58c2897f8c 100644
--- a/.github/workflows/verify-deps.yml
+++ b/.github/workflows/verify-deps.yml
@@ -4,6 +4,9 @@ on:
   schedule:
     - cron: '0 0 * * *' # Runs at 00:00 UTC every day
 
+env:
+  RUSTFLAGS: "-D warnings"
+
 jobs:
   latest_deps:
     name: Latest Dependencies