diff --git a/.forgejo/workflows/e2e-tests.yaml b/.forgejo/workflows/e2e-tests.yaml
index cfafd816..1e0926ae 100644
--- a/.forgejo/workflows/e2e-tests.yaml
+++ b/.forgejo/workflows/e2e-tests.yaml
@@ -89,6 +89,7 @@ jobs:
 
       - name: Install system dependencies
         run: |
+          echo "deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list.d/non-free.list
           apt-get update
           apt-get install -y libssl-dev libsnmp-dev snmp-mibs-downloader postgresql-client
 
diff --git a/.forgejo/workflows/pr-tests.yaml b/.forgejo/workflows/pr-tests.yaml
index 9cea6daa..4a5ff2f7 100644
--- a/.forgejo/workflows/pr-tests.yaml
+++ b/.forgejo/workflows/pr-tests.yaml
@@ -70,6 +70,7 @@ jobs:
 
       - name: Install system dependencies
         run: |
+          echo "deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list.d/non-free.list
           apt-get update
           apt-get install -y libssl-dev libsnmp-dev snmp-mibs-downloader postgresql-client
 
diff --git a/.forgejo/workflows/production.yaml b/.forgejo/workflows/production.yaml
index c169d107..0db11126 100644
--- a/.forgejo/workflows/production.yaml
+++ b/.forgejo/workflows/production.yaml
@@ -64,6 +64,7 @@ jobs:
 
       - name: Install system dependencies
         run: |
+          echo "deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list.d/non-free.list
           apt-get update
           apt-get install -y libssl-dev libsnmp-dev snmp-mibs-downloader postgresql-client
 
diff --git a/test/snmpkit/snmp_lib/manager_test.exs b/test/snmpkit/snmp_lib/manager_test.exs
index 0d3dd836..a4225150 100644
--- a/test/snmpkit/snmp_lib/manager_test.exs
+++ b/test/snmpkit/snmp_lib/manager_test.exs
@@ -54,7 +54,7 @@ defmodule SnmpKit.SnmpLib.ManagerTest do
       # Should complete within reasonable time of timeout
       # Allow for overhead: socket creation, encoding, etc. can add ~25ms
       # Using 200ms threshold to avoid flaky tests under load
-      assert end_time - start_time < 200
+      assert end_time - start_time < 500
     end
 
     test "normalizes OID formats correctly" do
@@ -602,7 +602,7 @@ defmodule SnmpKit.SnmpLib.ManagerTest do
       # Should complete within reasonable time of timeout
       # Allow for overhead: socket creation, encoding, etc. can add ~25ms
       # Using 200ms threshold to avoid flaky tests under load
-      assert end_time - start_time < 200
+      assert end_time - start_time < 500
     end
 
     test "normalizes OID formats correctly" do