diff --git a/.github/workflows/o2-full-deps.yml b/.github/workflows/o2-full-deps.yml
index 71386922..2bcc9493 100644
--- a/.github/workflows/o2-full-deps.yml
+++ b/.github/workflows/o2-full-deps.yml
@@ -20,17 +20,17 @@ jobs:
         include:
           - el_version: el8
             container: almalinux:8
-            alibuild_tag: v1.17.41
+            alibuild_tag: v1.17.42
           - el_version: el9
             container: almalinux:9
-            alibuild_tag: v1.17.41
+            alibuild_tag: v1.17.42
           - el_version: fedora
             container: fedora:40
-            alibuild_tag: v1.17.41
+            alibuild_tag: v1.17.42
           # aarch64 build on native ARM runner
           - el_version: el9
             container: almalinux:9
-            alibuild_tag: v1.17.41
+            alibuild_tag: v1.17.42
             runs_on: ubuntu-24.04-arm
 
     name: "RPM (${{ matrix.el_version }} ${{ matrix.runs_on || 'x86_64' }})"
@@ -97,7 +97,7 @@ jobs:
     name: DEB (${{ matrix.ubuntu_codename }})
     container: ubuntu:${{ matrix.ubuntu_codename }}
     env:
-      ALIBUILD_TAG: v1.17.41
+      ALIBUILD_TAG: v1.17.42
       ALIBUILD_DISTRO: ${{ matrix.ubuntu_codename }}
       DEBIAN_FRONTEND: noninteractive
     steps:
diff --git a/ci/repo-config/DEFAULTS.env b/ci/repo-config/DEFAULTS.env
index 7818c401..aa494aa8 100644
--- a/ci/repo-config/DEFAULTS.env
+++ b/ci/repo-config/DEFAULTS.env
@@ -7,5 +7,5 @@ MAX_DIFF_SIZE=20000000
 TIMEOUT=120
 LONG_TIMEOUT=36000
 DOCKER_EXTRA_ARGS='--tmpfs=/dev/shm:rw,size=10g,mode=1777'
-INSTALL_ALIBUILD='alisw/alibuild@v1.17.41'
+INSTALL_ALIBUILD='alisw/alibuild@v1.17.42'
 INSTALL_ALIBOT='alisw/ali-bot@master'