diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 8c40ef4..2923a2f 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,5 +1,5 @@
 assimp:
-- 5.4.2
+- 5.4.3
 c_compiler:
 - gcc
 c_compiler_version:
diff --git a/.ci_support/linux_aarch64_.yaml b/.ci_support/linux_aarch64_.yaml
index 7d12715..fa36d69 100644
--- a/.ci_support/linux_aarch64_.yaml
+++ b/.ci_support/linux_aarch64_.yaml
@@ -1,7 +1,7 @@
 BUILD:
 - aarch64-conda_cos7-linux-gnu
 assimp:
-- 5.4.2
+- 5.4.3
 c_compiler:
 - gcc
 c_compiler_version:
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 804aaf9..3d272e8 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '10.15'
 assimp:
-- 5.4.2
+- 5.4.3
 c_compiler:
 - clang
 c_compiler_version:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index 2817351..6e457d2 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '11.0'
 assimp:
-- 5.4.2
+- 5.4.3
 c_compiler:
 - clang
 c_compiler_version:
diff --git a/.ci_support/win_64_.yaml b/.ci_support/win_64_.yaml
index 92fe9dd..f8769e3 100644
--- a/.ci_support/win_64_.yaml
+++ b/.ci_support/win_64_.yaml
@@ -1,5 +1,5 @@
 assimp:
-- 5.4.2
+- 5.4.3
 c_compiler:
 - vs2019
 c_stdlib: