diff --git a/Changelog.md b/Changelog.md
index f2c549f..75594f1 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,6 +2,9 @@
 
 ## [0.94] - 2026-07-30
 
+- requires collocatordb >= 1.5.0, which fixes the leaks in the collocator
+  lookup and builds against the rocksdb of the distribution, so that no
+  rocksdb 5.11 has to be built from source anymore
 - fixed a crash on out of range word ranks: a single request with a `w`
   parameter beyond the vocabulary size, or a `getVecsByRanks` request with such
   a rank, killed the worker process
diff --git a/Makefile.PL b/Makefile.PL
index 2f5d85a..08fa3a6 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -9,7 +9,7 @@
 check_lib_or_exit(
     cflags => '-Wall -Wno-unused-result -fno-rtti -O4 -I/usr/local/include',
     header => ['unistd.h', 'stdio.h', 'stdlib.h', 'string.h', 'collocatordb.h'],
-    function => 'char *min_v = "1.3.2"; char *v = get_version(); if(strcmp(min_v, v) <= 0) { return 0; } else { fprintf(stderr, "Installed collocatordb version %s is too low. Minimally %s is required.\n", v, min_v); return(1); }',
+    function => 'char *min_v = "1.5.0"; char *v = get_version(); if(strcmp(min_v, v) <= 0) { return 0; } else { fprintf(stderr, "Installed collocatordb version %s is too low. Minimally %s is required.\n", v, min_v); return(1); }',
     libpath => ['/usr/lib', '/usr/local/lib64', '/usr/local/lib'],
     incpath => ['/usr/include', '/usr/local/include'],
     # debug => 1,
diff --git a/README.md b/README.md
index c13535c..b6e0af3 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
 
 ### Dependencies
 
-* [libcollocaltordb](https://korap.ids-mannheim.de/gerrit/plugins/gitiles/ids-kl/collocatordb) >= v1.3.2
+* [libcollocatordb](https://korap.ids-mannheim.de/gerrit/plugins/gitiles/ids-kl/collocatordb) >= v1.5.0 (which builds against the rocksdb of the distribution, no rocksdb 5.11 from source needed)
 
 ### Build and install