diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 1a6e7bb7..8f3b9c85 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -7,7 +7,7 @@ cdt_name:
 channel_sources:
 - conda-forge,tiledb
 channel_targets:
-- tiledb main
+- tiledb rc
 cxx_compiler:
 - gxx
 cxx_compiler_version:
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 97be6914..8026f625 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -9,7 +9,7 @@ c_compiler_version:
 channel_sources:
 - conda-forge,tiledb
 channel_targets:
-- tiledb main
+- tiledb rc
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index c8a25ae9..195f8820 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -7,7 +7,7 @@ c_compiler_version:
 channel_sources:
 - conda-forge,tiledb
 channel_targets:
-- tiledb main
+- tiledb rc
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index 786ca443..033d5fbf 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -5,7 +5,7 @@ MACOSX_DEPLOYMENT_TARGET:  # [osx and x86_64]
 channel_sources:
   - conda-forge,tiledb
 channel_targets:
-  - tiledb main
+  - tiledb rc
 channel_priority:
   - strict
 numpy:
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 1b70da97..479acf09 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,6 +1,6 @@
 {% set name = "tiledbsoma" %}
-{% set version = "1.4.3" %}
-{% set sha256 = "1d8d98f65c6e51338278906d93a9f2e43a6f486fa11c6ec96730d79dd7ea5b64" %}
+{% set version = "1.5.0rc0" %}
+{% set sha256 = "8e5e594a4d52026cc390cf675158f498d3518191415be20fab7c35f7bfa2645f" %}
 # This is the SHA256 of
 #   TileDB-SOMA-i.j.k.tar.gz
 # from
@@ -41,11 +41,11 @@ outputs:
         - cmake
         - make  # [not win]
       host:
-        - tiledb >=2.16.2,<2.17
+        - tiledb >=2.17.0,<2.18
         - spdlog
         - fmt
       run:
-        - tiledb >=2.16.2,<2.17
+        - tiledb >=2.17.0,<2.18
         - spdlog
         - fmt
     about:
@@ -96,7 +96,7 @@ outputs:
         - scipy
         - anndata       # [py>37]
         - anndata <0.9  # [py<=37]
-        - tiledb-py >=0.22.2,<0.23.0
+        - tiledb-py >=0.23.0,<0.24.0
         - typing-extensions >=4.1
         - numba
         - attrs >=22.2
@@ -132,7 +132,7 @@ outputs:
         - r-rcppspdlog               # [build_platform != target_platform]
         - r-matrix                   # [build_platform != target_platform]
         - r-bit64                    # [build_platform != target_platform]
-        - r-tiledb >=0.20.3          # [build_platform != target_platform]
+        - r-tiledb >=0.21.0,<0.22    # [build_platform != target_platform]
         - r-arrow                    # [build_platform != target_platform]
         - r-fs                       # [build_platform != target_platform]
         - r-glue                     # [build_platform != target_platform]
@@ -147,7 +147,7 @@ outputs:
         - r-r6
         - r-matrix
         - r-bit64
-        - r-tiledb >=0.20.3
+        - r-tiledb >=0.21.0,<0.22
         - r-arrow
         - r-fs
         - r-glue
@@ -163,7 +163,7 @@ outputs:
         - r-r6
         - r-matrix
         - r-bit64
-        - r-tiledb >=0.20.3
+        - r-tiledb >=0.21.0,<0.22
         - r-arrow
         - r-fs
         - r-glue