diff --git a/.github/actions/setup-slither/action.yaml b/.github/actions/setup-slither/action.yaml
index d8e7bef9e5e..b8bef38575d 100644
--- a/.github/actions/setup-slither/action.yaml
+++ b/.github/actions/setup-slither/action.yaml
@@ -1,5 +1,5 @@
 name: Setup Slither
-description: Installs Slither for contract analysis. Requires Python 3.6 or higher.
+description: Installs Slither 0.10.3 for contract analysis. Requires Python 3.6 or higher.
 runs:
   using: composite
   steps:
@@ -7,4 +7,4 @@ runs:
       shell: bash
       run: |
         python -m pip install --upgrade pip
-        pip install slither-analyzer
+        pip install slither-analyzer==0.10.3
diff --git a/.github/actions/setup-solc-select/action.yaml b/.github/actions/setup-solc-select/action.yaml
index 7903b7acd3c..780fb6d3117 100644
--- a/.github/actions/setup-solc-select/action.yaml
+++ b/.github/actions/setup-solc-select/action.yaml
@@ -15,7 +15,6 @@ runs:
       shell: bash
       run: |
         sudo apt-get update
-        sudo apt-get install -y python3-pip
         pip3 install solc-select
         sudo ln -s /usr/local/bin/solc-select /usr/bin/solc-select
                 
diff --git a/.github/workflows/solidity-foundry.yml b/.github/workflows/solidity-foundry.yml
index 63319d187b1..b4d9ec9066f 100644
--- a/.github/workflows/solidity-foundry.yml
+++ b/.github/workflows/solidity-foundry.yml
@@ -235,11 +235,6 @@ jobs:
       - name: Setup NodeJS
         uses: ./.github/actions/setup-nodejs
 
-      - name: Install semver
-        shell: bash
-        run: |
-          npm install -g semver
-
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@8f1998e9878d786675189ef566a2e4bf24869773 # v1.2.0
         with:
diff --git a/contracts/scripts/ci/generate_slither_report.sh b/contracts/scripts/ci/generate_slither_report.sh
index 50fc991e894..e1c526604d1 100755
--- a/contracts/scripts/ci/generate_slither_report.sh
+++ b/contracts/scripts/ci/generate_slither_report.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 function check_chainlink_dir() {
   local param_dir="chainlink"
diff --git a/contracts/scripts/ci/modify_remappings.sh b/contracts/scripts/ci/modify_remappings.sh
index 72394a2fe89..a6736f966a7 100755
--- a/contracts/scripts/ci/modify_remappings.sh
+++ b/contracts/scripts/ci/modify_remappings.sh
@@ -1,4 +1,6 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
+set -euo pipefail
 
 if [ "$#" -ne 2 ]; then
     >&2 echo "Usage: $0 <directory_prefix> <remappings_file>"
diff --git a/contracts/scripts/ci/select_solc_version.sh b/contracts/scripts/ci/select_solc_version.sh
index 316b261616a..057d2a29979 100755
--- a/contracts/scripts/ci/select_solc_version.sh
+++ b/contracts/scripts/ci/select_solc_version.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 function check_chainlink_dir() {
   local param_dir="chainlink"