diff --git a/requirements.txt b/requirements.txt
index 910ed527c508846a0d9f211b1c060fc27d45c2cf..fc0cf3c2cfe1dd1964a12c2f4420c03e24fa3350 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
-numpy~=1.23.3
-scipy~=1.9.2
-setuptools~=65.5.1
-pandas~=1.2.3
-julian~=0.14
-astropy~=5.1
-tqdm~=4.59.0
-galsim~=2.4.5
+numpy==1.23.3
+scipy==1.9.2
+setuptools==65.5.1
+pandas==1.2.3
+julian==0.14
+astropy=5.1
+tqdm=4.59.0
+galsim=2.4.5