diff --git a/.github/workflows/linux-500-32bit.yml b/.github/workflows/linux-500-32bit.yml
deleted file mode 100644
index 20c94961..00000000
--- a/.github/workflows/linux-500-32bit.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: 32bit 5.0.0
-
-on:
-  pull_request:
-  push:
-  workflow_dispatch:
-
-jobs:
-  build:
-    uses: ./.github/workflows/common.yml
-    with:
-      compiler: 'ocaml-variants.5.0.0+options,ocaml-option-32bit'
-      dune_profile: 'debug-runtime'
-      runparam: 's=4096,v=0,V=1'
-      timeout: 240
diff --git a/.github/workflows/linux-510-32bit.yml b/.github/workflows/linux-510-32bit.yml
deleted file mode 100644
index 19b1474e..00000000
--- a/.github/workflows/linux-510-32bit.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: 32bit 5.1.0
-
-on:
-  pull_request:
-  push:
-  workflow_dispatch:
-
-jobs:
-  build:
-    uses: ./.github/workflows/common.yml
-    with:
-      compiler: 'ocaml-variants.5.1.0+options,ocaml-option-32bit'
-      dune_profile: 'debug-runtime'
-      runparam: 's=4096,v=0,V=1'
-      timeout: 240
diff --git a/.github/workflows/linux-511-32bit.yml b/.github/workflows/linux-511-32bit.yml
deleted file mode 100644
index 60f9dd55..00000000
--- a/.github/workflows/linux-511-32bit.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: 32bit 5.1.1
-
-on:
-  pull_request:
-  push:
-  workflow_dispatch:
-
-jobs:
-  build:
-    uses: ./.github/workflows/common.yml
-    with:
-      compiler: 'ocaml-variants.5.1.1+options,ocaml-option-32bit'
-      dune_profile: 'debug-runtime'
-      runparam: 's=4096,v=0,V=1'
-      timeout: 240