diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 3cd2791..43ec324 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -10,9 +10,6 @@ cxx_compiler_version:
 - '10'
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - linux-64
 zlib:
diff --git a/.ci_support/linux_aarch64_.yaml b/.ci_support/linux_aarch64_.yaml
index cb31508..ec109ae 100644
--- a/.ci_support/linux_aarch64_.yaml
+++ b/.ci_support/linux_aarch64_.yaml
@@ -14,9 +14,6 @@ cxx_compiler_version:
 - '10'
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - linux-aarch64
 zlib:
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index 847f571..09f84fd 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -10,9 +10,6 @@ cxx_compiler_version:
 - '10'
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - linux-ppc64le
 zlib:
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 2dd421a..b5d8270 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -10,9 +10,6 @@ cxx_compiler_version:
 - '14'
 macos_machine:
 - x86_64-apple-darwin13.4.0
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - osx-64
 zlib:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index f80b740..648ff37 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -10,9 +10,6 @@ cxx_compiler_version:
 - '14'
 macos_machine:
 - arm64-apple-darwin20.0.0
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - osx-arm64
 zlib:
diff --git a/.ci_support/win_64_.yaml b/.ci_support/win_64_.yaml
index 217de40..a3fcf8a 100644
--- a/.ci_support/win_64_.yaml
+++ b/.ci_support/win_64_.yaml
@@ -4,9 +4,6 @@ channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2019
-pin_run_as_build:
-  zlib:
-    max_pin: x.x
 target_platform:
 - win-64
 zlib:
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 93e01a5..de37747 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,4 +1,4 @@
-{% set version = "15.0.2" %}
+{% set version = "15.0.3" %}
 {% set major_version = version.split(".")[0] %}
 
 package:
@@ -7,7 +7,7 @@ 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: 7877cd67714728556a79e5ec0cc72d66b6926448cf73b12b2cb901b268f7a872
+    sha256: dd07bdab557866344d85ae21bbeca5259d37b4b0e2ebf6e0481f42d1ba0fee88
     patches:
       # https://reviews.llvm.org/D99470
       - 0001-Support-cross-compiling-standalone-MLIR.patch