diff --git a/Doxyfile b/Doxyfile
index 23ab799..f2091e7 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -48,7 +48,7 @@ PROJECT_NAME           = fourdst::libcomposition
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v2.2.1
+PROJECT_NUMBER         = v2.2.2
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewers a
diff --git a/meson.build b/meson.build
index a707531..d668cee 100644
--- a/meson.build
+++ b/meson.build
@@ -18,7 +18,7 @@
 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 #
 # *********************************************************************** #
-project('libcomposition', 'cpp', version: 'v2.2.1', default_options: ['cpp_std=c++23'], meson_version: '>=1.5.0')
+project('libcomposition', 'cpp', version: 'v2.2.2', default_options: ['cpp_std=c++23'], meson_version: '>=1.5.0')
 
 # Add default visibility for all C++ targets
 add_project_arguments('-fvisibility=default', language: 'cpp')
diff --git a/src/composition/include/fourdst/composition/utils.h b/src/composition/include/fourdst/composition/utils.h
index 6c5707c..8f1c8c0 100644
--- a/src/composition/include/fourdst/composition/utils.h
+++ b/src/composition/include/fourdst/composition/utils.h
@@ -4,6 +4,8 @@
 #include "fourdst/atomic/atomicSpecies.h"
 
 #include <vector>
+#include <optional>
+#include <string>
 
 namespace fourdst::composition {
     /**
@@ -87,4 +89,6 @@ namespace fourdst::composition {
     Composition buildCompositionFromMassFractions(
         std::map<std::string, double> massFractions
     );
+
+    std::optional<fourdst::atomic::Species> getSpecies(const std::string& symbol);
 }
\ No newline at end of file
diff --git a/src/composition/lib/composition.cpp b/src/composition/lib/composition.cpp
index 0d73ade..6b8f570 100644
--- a/src/composition/lib/composition.cpp
+++ b/src/composition/lib/composition.cpp
@@ -34,6 +34,7 @@
 #include "fourdst/atomic/atomicSpecies.h"
 #include "fourdst/atomic/species.h"
 #include "fourdst/composition/composition.h"
+#include "fourdst/composition/utils.h"
 
 #include "fourdst/composition/exceptions/exceptions_composition.h"
 
@@ -62,13 +63,6 @@ namespace {
         return sorted;
     }
 
-    std::optional<fourdst::atomic::Species> getSpecies(const std::string& symbol) {
-        if (!fourdst::atomic::species.contains(symbol)) {
-            return std::nullopt;
-        }
-        return fourdst::atomic::species.at(symbol);
-    }
-
     void throw_unknown_symbol(quill::Logger* logger, const std::string& symbol) {
         LOG_ERROR(logger, "Symbol {} is not a valid species symbol (not in the species database)", symbol);
         throw fourdst::composition::exceptions::UnknownSymbolError("Symbol " + symbol + " is not a valid species symbol (not in the species database)");
diff --git a/src/composition/lib/utils.cpp b/src/composition/lib/utils.cpp
index 16b86c7..2d21910 100644
--- a/src/composition/lib/utils.cpp
+++ b/src/composition/lib/utils.cpp
@@ -14,13 +14,6 @@
 #include "quill/LogMacros.h"
 
 namespace {
-    std::optional<fourdst::atomic::Species> getSpecies(const std::string& symbol) {
-        if (!fourdst::atomic::species.contains(symbol)) {
-            return std::nullopt;
-        }
-        return fourdst::atomic::species.at(symbol);
-    }
-
     quill::Logger* getLogger() {
         static quill::Logger* logger = fourdst::logging::LogManager::getInstance().getLogger("log");
         return logger;
@@ -193,4 +186,11 @@ namespace fourdst::composition {
         return buildCompositionFromMassFractions(species, massFractionVector);
     }
 
+    std::optional<fourdst::atomic::Species> getSpecies(const std::string& symbol) {
+        if (!fourdst::atomic::species.contains(symbol)) {
+            return std::nullopt;
+        }
+        return fourdst::atomic::species.at(symbol);
+    }
+
 }
\ No newline at end of file