diff --git a/test/associations_test.cpp b/test/associations_test.cpp
index 7da4a20..5fa95c3 100644
--- a/test/associations_test.cpp
+++ b/test/associations_test.cpp
@@ -177,7 +177,7 @@
         Manager m{bus};
         EXPECT_TRUE(false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {}
 }
 
@@ -249,7 +249,7 @@
 
         EXPECT_TRUE(false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {}
 }
 
@@ -263,7 +263,7 @@
 
         EXPECT_TRUE(false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {}
 }
 
@@ -277,7 +277,7 @@
 
         EXPECT_TRUE(false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {}
 }
 
@@ -291,6 +291,6 @@
 
         EXPECT_TRUE(false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {}
 }