diff --git a/src/main/python/ddadevops/domain/build_file.py b/src/main/python/ddadevops/domain/build_file.py
index 1a65bf2..7c29ec9 100644
--- a/src/main/python/ddadevops/domain/build_file.py
+++ b/src/main/python/ddadevops/domain/build_file.py
@@ -52,7 +52,7 @@ class BuildFile(Validateable):
             case BuildFileType.PYTHON:
                 return "[0-9]*\\.[0-9]*\\.[0-9]*(-SNAPSHOT)?(-dev)?[0-9]*"
             case BuildFileType.JAVA_CLOJURE:
-                return "[0-9]*\\.[0-9]*\\.[0-9]*(-SNAPSHOT)?"
+                return r'(?P<project>\(defproject\s(\S)*\s)\"(?P<version>\d*\.\d*\.\d*(-SNAPSHOT)?)\"'
             case _:
                 return ""
 
@@ -80,13 +80,7 @@ class BuildFile(Validateable):
                     )
                     version_str = version_string.group()
                 case BuildFileType.JAVA_CLOJURE:
-                    # TODO: unsure about the trailing '\n' !
-                    version_line = re.search("\\(defproject .*\n", self.content)
-                    version_line_group = version_line.group()
-                    version_string = re.search(
-                        self.__get_file_type_regex_str(build_file_type), version_line_group
-                    )
-                    version_str = version_string.group()
+                    version_str = re.search(self.__get_file_type_regex_str(build_file_type), self.content).group("version")
         except:
             raise RuntimeError(f"Version not found in file {self.file_path}")
 
@@ -96,7 +90,6 @@ class BuildFile(Validateable):
         return result
 
     def set_version(self, new_version: Version):
-        # TODO: How can we create regex-pattern constants to use them at both places?
 
         if new_version.is_snapshot():
             new_version.snapshot_suffix = self.get_default_suffix()
@@ -125,8 +118,8 @@ class BuildFile(Validateable):
                 case BuildFileType.JAVA_CLOJURE:
                     # TODO: we should stick here on defproject instead of first line!
                     substitute = re.sub(
-                        f'"{self.__get_file_type_regex_str(build_file_type)}"',
-                        f'"{new_version.to_string()}"',
+                        self.__get_file_type_regex_str(build_file_type),
+                        fr'\g<project>"{new_version.to_string()}"',
                         self.content,
                         1,
                     )