diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index b2fef48..2b332cf 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,3 +1,7 @@
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -12,5 +16,8 @@ docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
 target_platform:
 - linux-64
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
 zlib:
 - '1.2'
diff --git a/.ci_support/linux_aarch64_.yaml b/.ci_support/linux_aarch64_.yaml
index 53bbb13..ffc94a0 100644
--- a/.ci_support/linux_aarch64_.yaml
+++ b/.ci_support/linux_aarch64_.yaml
@@ -1,5 +1,9 @@
 BUILD:
 - aarch64-conda_cos7-linux-gnu
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 cdt_arch:
 - aarch64
 cdt_name:
@@ -16,5 +20,8 @@ docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
 target_platform:
 - linux-aarch64
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
 zlib:
 - '1.2'
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index 8984487..0e03861 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -1,3 +1,7 @@
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 cdt_name:
 - cos7
 channel_sources:
@@ -12,5 +16,8 @@ docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
 target_platform:
 - linux-ppc64le
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
 zlib:
 - '1.2'
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 79f8130..6e8e210 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -1,5 +1,9 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '10.9'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.9'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index 1b14627..349a89e 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -1,5 +1,9 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/win_64_.yaml b/.ci_support/win_64_.yaml
index a3fcf8a..3be1026 100644
--- a/.ci_support/win_64_.yaml
+++ b/.ci_support/win_64_.yaml
@@ -1,3 +1,5 @@
+c_stdlib:
+- vs
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 23a4aae..a852af8 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "18.1.2" %}
+{% set version = "18.1.3" %}
 {% set major_version = version.split(".")[0] %}
 {% set maj_min = major_version ~ "." ~ version.split(".")[1] %}
 
@@ -12,7 +12,7 @@ package:
 
 source:
   - url: https://github.com/llvm/llvm-project/releases/download/llvmorg-{{ version.replace(".rc", "-rc") }}/llvm-project-{{ version.replace(".rc", "rc") }}.src.tar.xz
-    sha256: 51073febd91d1f2c3b411d022695744bda322647e76e0b4eb1918229210c48d5
+    sha256: 2929f62d69dec0379e529eb632c40e15191e36f3bd58c2cb2df0413a0dc48651
     patches:
       # https://reviews.llvm.org/D99470
       - patches/0001-Support-cross-compiling-standalone-MLIR.patch