diff --git a/CMakeLists.txt b/CMakeLists.txt
index d9b80e5..e8fb794 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION "3.14")
 cmake_policy(SET CMP0148 OLD) # To suppress a warning emerging from scikit-build
 
-project(Clima LANGUAGES Fortran C VERSION "0.5.2")
+project(Clima LANGUAGES Fortran C VERSION "0.5.3")
 set(PHOTOCHEM_CLIMA_DATA_VERSION "0.2.0")
 
 set(CMAKE_Fortran_MODULE_DIRECTORY "${CMAKE_BINARY_DIR}/modules")
diff --git a/cmake/CPM.cmake b/cmake/CPM.cmake
index e2dfeee..baf2d8c 100644
--- a/cmake/CPM.cmake
+++ b/cmake/CPM.cmake
@@ -1,8 +1,11 @@
-set(CPM_DOWNLOAD_VERSION 0.34.3)
+# SPDX-License-Identifier: MIT
+#
+# SPDX-FileCopyrightText: Copyright (c) 2019-2023 Lars Melchior and contributors
+
+set(CPM_DOWNLOAD_VERSION 0.40.2)
+set(CPM_HASH_SUM "c8cdc32c03816538ce22781ed72964dc864b2a34a310d3b7104812a5ca2d835d")
 
 if(CPM_SOURCE_CACHE)
-  # Expand relative path. This is important if the provided path contains a tilde (~)
-  get_filename_component(CPM_SOURCE_CACHE ${CPM_SOURCE_CACHE} ABSOLUTE)
   set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
 elseif(DEFINED ENV{CPM_SOURCE_CACHE})
   set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
@@ -10,12 +13,12 @@ else()
   set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
 endif()
 
-if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
-  message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
-  file(DOWNLOAD
-       https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
-       ${CPM_DOWNLOAD_LOCATION}
-  )
-endif()
+# Expand relative path. This is important if the provided path contains a tilde (~)
+get_filename_component(CPM_DOWNLOAD_LOCATION ${CPM_DOWNLOAD_LOCATION} ABSOLUTE)
+
+file(DOWNLOAD
+     https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
+     ${CPM_DOWNLOAD_LOCATION} EXPECTED_HASH SHA256=${CPM_HASH_SUM}
+)
 
 include(${CPM_DOWNLOAD_LOCATION})
diff --git a/src/dependencies/CMakeLists.txt b/src/dependencies/CMakeLists.txt
index 03d92c6..1115a93 100644
--- a/src/dependencies/CMakeLists.txt
+++ b/src/dependencies/CMakeLists.txt
@@ -1,20 +1,20 @@
 
 CPMAddPackage(
   NAME forwarddiff
-  VERSION 0.1.2
+  VERSION 0.1.3
   OPTIONS 
     "BUILD_EXECUTABLE OFF"
   GITHUB_REPOSITORY "Nicholaswogan/forwarddiff"
-  GIT_TAG "v0.1.2"
+  GIT_TAG "v0.1.3"
   EXCLUDE_FROM_ALL ON
 )
 
 # fortran-yaml-c
 CPMAddPackage(
   NAME fortran-yaml-c
-  VERSION 0.2.4
+  VERSION 0.2.6
   GITHUB_REPOSITORY "Nicholaswogan/fortran-yaml-c"
-  GIT_TAG "v0.2.4"
+  GIT_TAG "v0.2.6"
   EXCLUDE_FROM_ALL ON
 )