diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 08a18e7fe..8c58c2cba 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -222,7 +222,7 @@ jobs:
       fail-fast: false
       matrix:
         build_type: [Release, Debug]
-        llvm_version: [17, 18, 19, 20]
+        llvm_version: [17, 18, 19]
 
     steps:
       - uses: actions/checkout@v4
@@ -390,7 +390,7 @@ jobs:
       fail-fast: false
       matrix:
         build_type: [Release, Debug]
-        llvm_version: [17, 18, 19, 20]
+        llvm_version: [17, 18, 19]
     steps:
       - uses: actions/checkout@v4
       - name: Install common deps
@@ -511,7 +511,7 @@ jobs:
       matrix:
         ubuntu_version: [20.04, 22.04]
         build_type: [Release, Debug]
-        llvm_version: [17, 18, 19, 20]
+        llvm_version: [17, 18, 19]
 
     steps:
       - uses: actions/checkout@v4